Sep 14, 2019 11:45 am
Hi I've had drainage issues on the side of my house for years. So today plumber has started digging in preparation for aggi pipes. So he's dug a hole near downpipe half a metre deep and the hole is seeping water. He's going to put a camera down the pipe to see wether he can spot the trouble. He seems to think that's my drainage issue. And aggi pipes won't solve it. Wanting opinions on this
Re: Possible broken pipe .somewhere2
Sep 14, 2019 12:30 pm
He's going to put a camera down the pipe to see wether he can spot the trouble.
As he should.
Wanting opinions on this.
Wait for the CCTV cam results and the plumber's advice.
Re: Possible broken pipe .somewhere3
Sep 14, 2019 9:41 pm
Well plumber put camera down . He said area of drainage pipes under water tank slab are crushed and under garage slab consequently water is not properly draining out of drainage pipes He thinks also that originally when the drainage was put down they have excavated to much. House is 11 years old.
Re: Possible broken pipe .somewhere4
Sep 15, 2019 1:09 am
Well plumber put camera down . He said area of drainage pipes under water tank slab are crushed and under garage slab.....
Crushed under both the water tank slab AND the garage?
Not being on site, I can't advise with any certainty as to the cause of the crushing but for compliance, the house should have been left with the natural ground level a minimum of 150mm below the Damp Proof Course (at the bottom of the weep holes) and the stormwater pipes should have had a minimum of 100mm cover if it was a non trafficable area. This means that the top of the stormwater pipe had to be a minimum of 250mm below the Damp Proof Course. I can't imagine the water tank slab being responsible for crushing the pipe if all was done to compliance but earth moves with seasonal wet and dry periods and improper trenching in some soils can result in pipe failure.
Did the plumber give you a video of the cam inspection? I am wondering whether you have seen the extent of the crushing.
The initial pipe length looks like flexible plastic pipe. Did the plumber comment on this? The stormwater pipe needs replacing and the plumber obviously knows this. Do you know the soil classification and does the house have any cracking brickwork or plaster? I doubt that you will need ag pipe once the stormwater is brought up to scratch as you do appear to have good draining soil.
You appear to also have a reasonable amount of boundary setback. Is there room for the plumber to divert a new stormwater pipe around the water tank slab?
I wonder how deep all of the other stormwater pipes are.
Re: Possible broken pipe .somewhere5
Sep 15, 2019 9:50 am
Hi p class soil. Reactive. He was showing me the pipe as he put the camera down and through and pointed out issues as he went along. all around the house ,drainage is f%&ked, and told me as it went along, where the issues were. Some parts full of water. Yes it was flexible piping and he replaced that part. Will ask him about putting a storm water pipe around the tank. My initial issue was the above ground area would flood in heavy rain. I've told builder over the years and they have said install aggi pipes. Plumber said won't make any difference. He also said replace downpipes with pvc piping. . He said he can make a report and im thinking I will send it to builder.
Re: Possible broken pipe .somewhere6
Sep 15, 2019 12:39 pm
p class soil. Reactive.
I've told builder over the years and they have said install aggi pipes. Plumber said won't make any difference.
The plumber is correct as he has proven the cause of the flooding but because you are on P reactive, you should also consider installing a sloping impermeable perimeter path that drains to a spoon drain.
He also said replace downpipes with pvc piping. He said he can make a report and im thinking I will send it to builder.
90mm round pvc downpipe have superior drainage in comparison to the current 100mm x 50mm downpipes but unless the gutters overflow during heavy rain, I can't see any advantage is also changing the downpipes.
Unfortunately, the house is now 11 years old and you cannot claim on the plumber's insurance.
The builder should have known that he needed to eliminate damaged stormwater pipes as the cause and advised you to have a CCTV cam inspection. Wrongly advising that you needed ag pipe drainage basically eliminated without reason leaking stormwater pipes as the cause.
Do you have a dated paper trail of your complaints to the builder? Unless the builder exhibits professional ethics and a social conscience, you could end up in expensive time consuming legals if he refuses to own responsibility whereas you need to have the pipework replaced ASAP. Sending the builder proof of cause is the first step to follow and hopefully you receive a positive response.
Re: Possible broken pipe .somewhere7
Sep 15, 2019 12:47 pm
No I don't think gutters are over flowing it's purely rain directed to ground. Yes I have emails sent to builder. I will somehow get them printed out. I read a post yesterday on here about plumbers insurance 6year expiry. I thought damm if I had have known that I could have taken action 😒. Problem is some of the pipework is under garage and driveway. I noticed you In the south east of Melb. I'm in pakenham are you a plumber?
Re: Possible broken pipe .somewhere9
Sep 15, 2019 1:31 pm
I noticed you In the south east of Melb. I'm in pakenham are you a plumber?
No, not a plumber. I research and design various products including plumbing products and drainage systems but I have cut back on my work load in recent years. I see a lot of endemic bad plumbing around the traps and strongly believe that an independent CCTV Cam inspection should be done on all new properties prior to handover. As is, nothing is inspected and non compliance is rife.
Did you notify the builder within the 6 year period?
Re: Possible broken pipe .somewhere10
Sep 15, 2019 2:16 pm
I told them about the drainage issues . Spoke them over the phone and emailed I've gone through my old emails . Only can find emails on other defects . I will still though ring them and email about this latest issue. Yes in hindsight a good idea about doing camera inspections before handover.
Re: Possible broken pipe .somewhere11
Sep 18, 2019 3:51 pm
Re: Possible broken pipe .somewhere12
Sep 18, 2019 6:39 pm
It sounds like the stormwater pipes haven't been properly trenched and embedded.
I don't know how the plumber could tell that the pipe was "being squashed/damaged by foreign objects" and that is a serious statement to make in writing. Proper embedment protects pipes from foreign objects when there is ground movement.
Did the plumber give you a disc copy of the inspection?
A good CCTV cam will also have a locator on it so that when a problem area is found, it can be pinpointed from above ground. Did he identify any above ground areas where the pipes had been damaged by foreign objects?
11 years is a long time and your area has had climatic variances during that time, it would be very difficult for any inspection to unequivocally ascertain the gradient that the pipes were originally laid.
Did the plumber give you any idea as to the likely cost of rectification?
Re: Possible broken pipe .somewhere13
Sep 18, 2019 6:59 pm
Save, he spotted the issues when he put the camera down. He said he will come going and this time record video the pipes on usb. I've contacted the builder, if drains need to be replaced they said they may cover it on their builders warranty . Even though it's eleven years since house was built. But we will see.
Re: Possible broken pipe .somewhere14
Sep 18, 2019 10:44 pm
The problem with plumbing is that no one checks it and builders are also often caught out unawares. The builder's early advice to you to install ag pipes in all likelyhood was told to him by the plumber.
There are builders who have decency and hopefully your builder will reflect on your earlier complaints about the plumbing and reflect on you being a wronged innocent party in someone else's doing. In fact, the builder also sounds like a wronged innocent party.
I hope that it all works out ok.
Re: Possible broken pipe .somewhere16
Sep 20, 2019 6:45 pm
Much appreciated luxbuild.
Re: Possible broken pipe .somewhere17
Sep 20, 2019 6:57 pm
Is flexi storm water pipe bad?
Apparently yes. Non compliant according to plumber .It breaks easily. I have it connected to all my drainpipes. Except for one as plumber replaced it with proper connections
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