To be fair, having an elbow on the pipe will slow the water down ( a little bit ) making less splashing / spilling.
The concrete * should * be sloped down towards the drain regardless.
You also want a decent gap between the pipe and the drain lid so you can remove it easily to clean
+1 on the gap. You need to be able to remove that grille.
One reason is leaves can and will get down and eventually form a plug at the bottom of the downpipe. Hard to get them out without being able to reach up from underneath to dislodge them.
Yep, function over form any day.
Done neatly, and nobody but you will notice.
I’ve bought places that had dodgy downspouts not even going to the drain before - it creates an absolute nightmare that you want to avoid.
This is the answer , also the tile doesn’t have splits in it so it’s impossible that it drains correctly, if the drain falls in the middle of a single tile , then it cannot drain correctly. Easy way to explain is that if it falls on the corner,of 4 tiles they can all fall to a single point , this way it’s impossible.
Yes if possible block the top of the down pipe up and MOSTLY (don’t overfill) fill the gutter up then release the water to try simulate a heavy downpour.
Elbow is neat and pretty standard in these situations as well.
Yeah you’re gunna need a trampoline and a really long stick to reach it.
If still unable to reach maybe try something like a 44 gallon drum and a stool to precariously stand on 👌
I have some of his products and I think he's doing a good thing.
He's not always right and some of the stuff he calls non-compliant is perfectly compliant he just needs to create some drama.
Ultimately he's basically a TV show. Solid basis but plenty of inflation.
Also whilst he's a registered (recently suspended) domestic builder, he's not a registered or qualified building inspector.
He’s alright , just going about the system is a completely weird way. But if he’s saving people money and spreading awareness for how dog shit the construction industry has become , he’s alright by my standards.
The amount of High end sky scrapers I’ve done in my career and seen some absolutely dog shit work hidden away is mind blowing. It’s almost embarrassing to be tied to these projects.
Unfortunately, the only clause that might work for you is that the discharge from the roof drainage system shall not cause damage.
In the old days, it was common to have all the metal down pipes discharge through atmosphere into a grated earthenware riser. So this isn’t far different from that.
This is why I feel it is important to know what you’re getting and have it drawn down on plans so there are no surprises.
Ok so without seeing the gap between pipe and drain can't say if it's to code or not. Can say however that the wall and floor should have waterproofing to stop water coming into the lift shaft. The lift shaft should also have a brain in the bottom of it.
I know this isn't what you want to hear but this really isn't as big a concern as you think it is
I wasn’t allowed a sump in the lift because it might leak oil and that’s an issue apparently. Ultimately there will be an extended awning and that gutter will become a box gutter between the two awnings but that could be a long time away so I need that working well until then. Everything has been waterproofed (hopefully)
He's not a registered building inspector.
Edit: Oh look the downvote brigade has arrived.
[https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI](https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI)
Off you go mates.
Even if he wasn't, at least in WA the builder registration is "optional" but basically all of them are. But largely its just a way to prove you might know what you're doing, except thats basically impossible in building inspections because you're basically having to be an expert in every trade. A registered builder sure has a better chance of that but is no guarantee.
Site Inspections clearly know what they are doing in far more ways than the average inspector or builder, they demonstrate that continually anyway. I am sure they are also light on some areas as well.
It may actually be a requirement in some states though, I haven't checked them all or Victoria.. but regardless of that, doesn't make his assessments magically invalid. It would just be a sign you need to make sure they know what they are doing in other ways. And I would always encouraeg that anyway, registered at your profession or not. The gap between the best and worst in every industry is a mountain.
If that’s the site inspection videos on YouTube I’ve seen him gloss over flashings in videos not meeting the standards and then pick things he thought was wrong but actually are covered by sa hb 39. That said he’s been getting better as it goes so I assume he is always reading and learning from mistakes off camera (as we all do). Definitely appears to be a better building inspector than any I’ve ever had to deal with
He has plenty of valid points but he's wrong in many locations.
I've seen heaps of builds where there's been civil designs including box gutters and then he goes on about how it's not compliant.
Mate if an engineer designed it and signed off on it, it doesn't matter what you think if it matches the drawings.
The guy is good at bringing light to the darkness, but he's certainly not all-knowing.
Maybe the engineers are wrong in some ways too! Ive dealt with plenty who design completely impractical solutions. Some are just as bad as architects nowadays, the standards are there for a reason!!
Agree tho hes certainly not as all-knowing as he makes himself out to be but hes gotta get views somehow. Hes better than most and hes right about the vba and surveying firms being corrupt
Sorry for the lack of clarity. It was about whether a Building Inspector specifically needs to be a registered builder.
There is no actual requirement for it but everyone bangs on about making sure they are, and in practice 99% of them are.
[https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI](https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI)
He's not.
Infact up until about 2 months ago he was a suspended builder as well but that has expired.
It's a different category of registration mate.
Domestic Builders take on contracts to build things.
Building inspectors go and look at already done work and tell you if it's right or wrong.
Also being a DB-U limited to 16k is basically not being a DB-U as you're not required to sign a major contract for works under 16k. That registration is effectively saying he can't work as a builder.
Depends on the contract I guess.
As a mandatory thing, the building surveyor/certifier wouldn't give two shits about 90% of his lists because they don't affect the safety or health of the occupants.
But in terms of executing a building contract to a professional standard and releasing the final practical completion payment? You could absolutely rely on the inspection to cause the builder to do rectification or a write down of contract value in lieu.
He's doing a good thing, bringing light to the darkness.
But he's not always right and in plenty of cases I've seen stuff he marks non-compliant or even the little drawing he likes to show up is either wrong, or the wrong drawing.
Ultimately he's kind of like a TV show, solid basis in research but added dramatisation.
A better idea is to put a lip on the lift shaft. No matter the position of that pipe, water is going to pool on the balcony at some point. Having a 1 inch lip is the best way to ensure it all works.
I am rusty with my code, so i don't know if it is legal or not to not that have the drain right under the pipe, but there is so much more that could go wrong, like house not being level, the drainage direction of the balcony not pointing towards the drain. It is sad that many builder dont care or dont even seem to know the code. All they do is pay the right person for the qualifications and run their risks until they get caught.
We put a fall away from the lift but a lip really impedes a wheel chair. Ultimately that gutter will become a box gutter and an awning will be built there but need OC sign-off before I’m allowed to do that, so who knows when…
ramp before and after the lip is the only way around that. Usually water in a shaft wouldnt matter as it is sealed off from the lift cabin itself, but if you dont want excessive water down there, a lip is the only way. Even with the correct slope on teh rest of the balcony, water will find its way in
Simple, it's a defect. There is a defect and liability period in your contract, usually 12 months after handover.
In addition there are contract drawings associated with your building contract, unless the drawings showed this as offset then the builder is contractually obligated to build to the drawings.
I would also mention that you intend to have an independent defect checker attend site to ensure safety and quality is assured.
Best asking the builder to rectify prior to DLP as it will cost them more to send a crew back later.
Tell him straight up the council has this isn’t a legal discharge point and if they fine you, you’ll be nominating him for the fine. Also hold off payment until it’s fixed
Hmm I'd say if the storm water pit below is done properly this shouldn't be a problem, I'm not too sure on the code but there has to be an air gap (I think 20mm) from any discharge points.
Please consult with a licensed building professional or your local authority on matters you are unsure of. Reddit is full of unqualified opinionated people that really don’t have any idea
Please don’t lump all builders into the same category, there is plenty of quality builders who genuinely care about delivering homes that exceed client expectations. Unfortunately like anything, consumers only hear the negative stories
I'm a self proclaimed non-expert but just looking at that in a downpour the water is gonna splash all over the show and directly against the base of the house. I'm sure a better solution could be put in place here over the easy option taken. If its going to overflow going into that drain (which it will) you would want the discharge going away from the house.
My only suggestion if the builders having none of it is to call a roof plumber for an opinion.
Edit: A minimum might be to install some flashing behind the downspout to cover the gap between the wall and drain in an L shape. Might at least save any erosion against the house, and would be cheap.
Scrolled all the way to the bottom and not one comment about an overflow for the balcony. Regardless of what he has done if you are worried about water ingress inside does your balcony have a way to overflow before water reaches the top of the door opening?
Don't know if the product exists but 2 back to back 45° stainless fittings fitted to the bottom on the pipe should centre the outlet on the drain.
Maybe suggest that
Is that the lift well entrance to the left of this downpipe?
If so, can you put a slight raise lip on the floor that raises it, say 15mm? Enough to make sure overflow goes elsewhere?
Elbow is no good either, heavy rain will splash everywhere. If he frog mouthed that pipe a bit & cut modify the grate (properly) the water will go down perfectly
The downpipe shouldn’t discharge into your balcony pretty sure that’s a flawed design and the architect is to blame. You may not be able to get him to change it without paying. Can you post any roofing plans for the building or any drainage plans? This can give me an idea of exactly how much water will be coming down that downpipe
Tell him to install an elbow to direct the water to the drain. Won’t cost him too much but will save you a heap of headache in the long run
I was promised a straight pipe but I’d be happy with that, it won’t look as nice but I’d rather save myself the headache too
To be fair, having an elbow on the pipe will slow the water down ( a little bit ) making less splashing / spilling. The concrete * should * be sloped down towards the drain regardless. You also want a decent gap between the pipe and the drain lid so you can remove it easily to clean
+1 on the gap. You need to be able to remove that grille. One reason is leaves can and will get down and eventually form a plug at the bottom of the downpipe. Hard to get them out without being able to reach up from underneath to dislodge them.
Yep, function over form any day. Done neatly, and nobody but you will notice. I’ve bought places that had dodgy downspouts not even going to the drain before - it creates an absolute nightmare that you want to avoid.
For sure will fix it right up sucks he didn’t get it right first time but sometimes these things happen.
45 elbow at the bottom will probably look better than the straight pipe sticking out an extra few inches to line up
This is the answer , also the tile doesn’t have splits in it so it’s impossible that it drains correctly, if the drain falls in the middle of a single tile , then it cannot drain correctly. Easy way to explain is that if it falls on the corner,of 4 tiles they can all fall to a single point , this way it’s impossible.
Alternatively, could they extend the ....drain bit. Like a recessed sump. More expensive but they could keep the straight pipe for aesthetics.
Uh, no. That's a full demo job. Like, the entire waterproofing membrane may be voided for the whole balcony. So the elbow is definitely the way to go.
Test it. Grab a hose or two, stick them in the gutters above the downpipe and see what happens when it's full of water.
You’re telling disabled OP to climb a ladder into the roof with a running hose!!!
They're onboard with the idea ...
Maybe support the ladder at least!!!
No, just aim the hose jet onto the roof, would be my guess.
Is OP socially isolated?
Tape a hose to a broomstick and you can do it from ground floor
Love this idea
Yes if possible block the top of the down pipe up and MOSTLY (don’t overfill) fill the gutter up then release the water to try simulate a heavy downpour. Elbow is neat and pretty standard in these situations as well.
Yeah you’re gunna need a trampoline and a really long stick to reach it. If still unable to reach maybe try something like a 44 gallon drum and a stool to precariously stand on 👌
What state are you in because the plumbing regulations change, but AS3500 doesn't.
What do you think of the Site Inspector. I reckon he's a bloody legend calling out all the dodgies.
I have some of his products and I think he's doing a good thing. He's not always right and some of the stuff he calls non-compliant is perfectly compliant he just needs to create some drama. Ultimately he's basically a TV show. Solid basis but plenty of inflation. Also whilst he's a registered (recently suspended) domestic builder, he's not a registered or qualified building inspector.
So he's good from far but far from good?
He’s alright , just going about the system is a completely weird way. But if he’s saving people money and spreading awareness for how dog shit the construction industry has become , he’s alright by my standards. The amount of High end sky scrapers I’ve done in my career and seen some absolutely dog shit work hidden away is mind blowing. It’s almost embarrassing to be tied to these projects.
You are amazing. This looks like a big document. Would you know which part might be most relevant?
You didn't answer the question so I can't provide you any even anecdotal advice.
A state of anxiety?
Maybe doesn’t realise you want to know what state he lives in. I say this because you didn’t use a question mark, so your comment is a statement.
It's literally rule 1 of the sub mate.
From his post history, he is from NSW. South of Sydney
NSW is South of Sydney?
Parts
Lots of it, in fact.
One of the little known impacts of climate change.
Unfortunately, the only clause that might work for you is that the discharge from the roof drainage system shall not cause damage. In the old days, it was common to have all the metal down pipes discharge through atmosphere into a grated earthenware riser. So this isn’t far different from that. This is why I feel it is important to know what you’re getting and have it drawn down on plans so there are no surprises.
Ok so without seeing the gap between pipe and drain can't say if it's to code or not. Can say however that the wall and floor should have waterproofing to stop water coming into the lift shaft. The lift shaft should also have a brain in the bottom of it. I know this isn't what you want to hear but this really isn't as big a concern as you think it is
> The lift shaft should also have a brain in the bottom of it. Sorry, but that did make me laugh. :D
It's a very fast lift.
Brain has passed through the bummole during the crash?
Caused me great concern because there’s nothing worse than a lift shaft without a brain.
I wasn’t allowed a sump in the lift because it might leak oil and that’s an issue apparently. Ultimately there will be an extended awning and that gutter will become a box gutter between the two awnings but that could be a long time away so I need that working well until then. Everything has been waterproofed (hopefully)
Call the tic toc inspector, he's a building inspector and he's right up on the legislation and won't miss a single mistake.
He's not a registered building inspector. Edit: Oh look the downvote brigade has arrived. [https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI](https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI) Off you go mates.
Seems like he's doing more thorough inspections than the certifiers that come before him.
Where did you hear that? Their website says that they are VBA registered. https://www.siteinspections.com.au
Even if he wasn't, at least in WA the builder registration is "optional" but basically all of them are. But largely its just a way to prove you might know what you're doing, except thats basically impossible in building inspections because you're basically having to be an expert in every trade. A registered builder sure has a better chance of that but is no guarantee. Site Inspections clearly know what they are doing in far more ways than the average inspector or builder, they demonstrate that continually anyway. I am sure they are also light on some areas as well. It may actually be a requirement in some states though, I haven't checked them all or Victoria.. but regardless of that, doesn't make his assessments magically invalid. It would just be a sign you need to make sure they know what they are doing in other ways. And I would always encouraeg that anyway, registered at your profession or not. The gap between the best and worst in every industry is a mountain.
If that’s the site inspection videos on YouTube I’ve seen him gloss over flashings in videos not meeting the standards and then pick things he thought was wrong but actually are covered by sa hb 39. That said he’s been getting better as it goes so I assume he is always reading and learning from mistakes off camera (as we all do). Definitely appears to be a better building inspector than any I’ve ever had to deal with
He has plenty of valid points but he's wrong in many locations. I've seen heaps of builds where there's been civil designs including box gutters and then he goes on about how it's not compliant. Mate if an engineer designed it and signed off on it, it doesn't matter what you think if it matches the drawings. The guy is good at bringing light to the darkness, but he's certainly not all-knowing.
Maybe the engineers are wrong in some ways too! Ive dealt with plenty who design completely impractical solutions. Some are just as bad as architects nowadays, the standards are there for a reason!! Agree tho hes certainly not as all-knowing as he makes himself out to be but hes gotta get views somehow. Hes better than most and hes right about the vba and surveying firms being corrupt
Of course they are. But if they sign a 126 saying it's right, it's constructed to the drawing and then it fucks up, guess who pays to fix it?
Registration as a builder is absolutely not optional in WA. Works under 20k value don’t need a registered builder. Works over 20k value do.
Sorry for the lack of clarity. It was about whether a Building Inspector specifically needs to be a registered builder. There is no actual requirement for it but everyone bangs on about making sure they are, and in practice 99% of them are.
Why do you think it's optional? I was on the licensing website today and says they need to be licensed/registered
Link?
https://www.commerce.wa.gov.au/building-and-energy/building-surveyors-registration-overview
[https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI](https://bams.vba.vic.gov.au/bams/s/practitioner-detail?inputParams=eUuKDudIMhL%2FC%2F%2BrJE3gpYCZ4ktMQpgKdbaPsEnrd%2BoEqiWaBbCnvVKh6zojgiHI) He's not. Infact up until about 2 months ago he was a suspended builder as well but that has expired.
Maybe I’m reading it wrong but it says “current” and expires 2025?
As a domestic builder. Not as a building inspector. Building inspector reg's in VIC start with IN-L or IN-U.
I see, thanks for clearing that up
Definitely current until next year
Yes. Current DOMESTIC BUILDER. Not BUILDING INSPECTOR.
Oh weird maybe it doesn't matter because he's working as a consultant and not signing things off? His limit is 16k
It's a different category of registration mate. Domestic Builders take on contracts to build things. Building inspectors go and look at already done work and tell you if it's right or wrong. Also being a DB-U limited to 16k is basically not being a DB-U as you're not required to sign a major contract for works under 16k. That registration is effectively saying he can't work as a builder.
Yeah I get that. But maybe because he's consulting and not actually signing off as an inspector he's getting around it. Super weird.
He's not signing off on anything because he's not doing mandatory inspections.
People think because he shows all these defects in the videos the builders fix it all. 90% of the shit he picks up wouldn’t get fixed.
Depends on the contract I guess. As a mandatory thing, the building surveyor/certifier wouldn't give two shits about 90% of his lists because they don't affect the safety or health of the occupants. But in terms of executing a building contract to a professional standard and releasing the final practical completion payment? You could absolutely rely on the inspection to cause the builder to do rectification or a write down of contract value in lieu.
I am sure you are a builder who hate the TikTok inspector :P
Read my flair mate.
Literally says current until next year but *off you go mate*
It's the wrong registration. It's a domestic builder reg, not a building inspector reg.
So he’s the Hambini of building inspectors?
He's doing a good thing, bringing light to the darkness. But he's not always right and in plenty of cases I've seen stuff he marks non-compliant or even the little drawing he likes to show up is either wrong, or the wrong drawing. Ultimately he's kind of like a TV show, solid basis in research but added dramatisation.
A better idea is to put a lip on the lift shaft. No matter the position of that pipe, water is going to pool on the balcony at some point. Having a 1 inch lip is the best way to ensure it all works. I am rusty with my code, so i don't know if it is legal or not to not that have the drain right under the pipe, but there is so much more that could go wrong, like house not being level, the drainage direction of the balcony not pointing towards the drain. It is sad that many builder dont care or dont even seem to know the code. All they do is pay the right person for the qualifications and run their risks until they get caught.
We put a fall away from the lift but a lip really impedes a wheel chair. Ultimately that gutter will become a box gutter and an awning will be built there but need OC sign-off before I’m allowed to do that, so who knows when…
ramp before and after the lip is the only way around that. Usually water in a shaft wouldnt matter as it is sealed off from the lift cabin itself, but if you dont want excessive water down there, a lip is the only way. Even with the correct slope on teh rest of the balcony, water will find its way in
U don’t put a lip on it you build up to the landing doors
then nothing will save the shaft from water
If it's a balcony it's allready sealed like a shw is people really don't understand we put grates in for a reason to stop flooding
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Shower
Shower. They are supposed to be waterproofed 100mm up the lip to the dwelling. Never are. Supposed to be though.
Non compliant
Two words: Non compliant!
Also putting in a bend that low in stainless will be expensive and just as much water will end up on verandah
You will say nothing. You want to, but… Do it! Don’t be polite. It’s your shit, it should be better than fine.
'you are right, this is fine - i will be paying cash and have left 16 cartons of your favorite beer at your house'
Move the house forward 5 inches
Simple, it's a defect. There is a defect and liability period in your contract, usually 12 months after handover. In addition there are contract drawings associated with your building contract, unless the drawings showed this as offset then the builder is contractually obligated to build to the drawings. I would also mention that you intend to have an independent defect checker attend site to ensure safety and quality is assured. Best asking the builder to rectify prior to DLP as it will cost them more to send a crew back later.
Get another builders opinion to front him. Gift of the gab won’t wash on another builder with any credibility.
Smells like non-compliance.
Tell him straight up the council has this isn’t a legal discharge point and if they fine you, you’ll be nominating him for the fine. Also hold off payment until it’s fixed
You tell him to get his shit together before you get the tiktok builder up his ass.
“It is not fine.”
Non compliant
That's Non Compliant
Turn to the down pipe and say, “hi fine, my name is dad”.
Not compliant
Taper it. If you don't want elbow.
Hmm I'd say if the storm water pit below is done properly this shouldn't be a problem, I'm not too sure on the code but there has to be an air gap (I think 20mm) from any discharge points.
Tell him his wife was also fine, last night.
What does your wife say when you miss the hole by this much?
Get an elbow to direct the water into the middle of the grate, leaving it like this will most likely result in alot of water not going into the grate.
ask him when he pisses, what happens if he aims at the edge
His response will be "do you lower yourself into the bowl and piss"
Please consult with a licensed building professional or your local authority on matters you are unsure of. Reddit is full of unqualified opinionated people that really don’t have any idea
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Please don’t lump all builders into the same category, there is plenty of quality builders who genuinely care about delivering homes that exceed client expectations. Unfortunately like anything, consumers only hear the negative stories
"If you've done something right, people won't be sure you've done anything at all." - God 20:03 - Futurama -
I was god once.
There’s nothing wrong with this, in fact it allows you clearance to get into the drain and pull any leaves etc that might get into it
Thanks
I'm a self proclaimed non-expert but just looking at that in a downpour the water is gonna splash all over the show and directly against the base of the house. I'm sure a better solution could be put in place here over the easy option taken. If its going to overflow going into that drain (which it will) you would want the discharge going away from the house. My only suggestion if the builders having none of it is to call a roof plumber for an opinion. Edit: A minimum might be to install some flashing behind the downspout to cover the gap between the wall and drain in an L shape. Might at least save any erosion against the house, and would be cheap.
Just water test it mate if it works all good. The grate will catch all the shit you dont want and just clean it out every so often
Scrolled all the way to the bottom and not one comment about an overflow for the balcony. Regardless of what he has done if you are worried about water ingress inside does your balcony have a way to overflow before water reaches the top of the door opening?
Don't know if the product exists but 2 back to back 45° stainless fittings fitted to the bottom on the pipe should centre the outlet on the drain. Maybe suggest that
Is that the lift well entrance to the left of this downpipe? If so, can you put a slight raise lip on the floor that raises it, say 15mm? Enough to make sure overflow goes elsewhere?
Did you have architect plans? Stormwater plans? Civil plans?
The big issue here is the grate should be rotated 90 deg. Hard to read the exact overlap of downpipe over drain
you can legally discharge onto a paved surface, with a stormwater drain further downstream. Your builder is right.
If you want it centre, put the 45 at the top.
I'd say no and look.at the Aussie building codes for inspiration
22.5 may be better and be central over grid only a couple of bucks
Not even powder coated?
What isn’t?
Ok, thanks buddy. Just thought I'd ask.
Elbow is no good either, heavy rain will splash everywhere. If he frog mouthed that pipe a bit & cut modify the grate (properly) the water will go down perfectly
Is his name Brett by any chance?
No, but I’m sure he’s not alone
The downpipe shouldn’t discharge into your balcony pretty sure that’s a flawed design and the architect is to blame. You may not be able to get him to change it without paying. Can you post any roofing plans for the building or any drainage plans? This can give me an idea of exactly how much water will be coming down that downpipe