Soil pipe & flexible ducting leak

[houstonwehaveaproblem]

Need to see the photos but sounds like a bodged up connection to an exterior SVP (soil vent pipe). If the flexible ducting has been used to come straight off the top of the highest branch to the wet soil pipe to wc then it's a bodge.

Perhaps it is a bodge. It was like this when we moved in 3 years ago but only just started leaking.

I cant really get to the main horizontal soil pipe but i can get to the section where it goes through the wall.

 

[houstonwehaveaproblem]

Excuse the awful pic but it looks like this...

 

[houstonwehaveaproblem]

 

[undertrained]

Given it’s only on the vent section of the soil pipe, it will be condensation/rain. If the vent section starts in your loft, I would say the easiest and cheapest way would be to fir an air admittance valve.

 

[houstonwehaveaproblem]

Given it’s only on the vent section of the soil pipe, it will be condensation/rain. If the vent section starts in your loft, I would say the easiest and cheapest way would be to fir an air admittance valve.

Thanks.

The main vent section at the other end of that flexible pipe is in the void but quite hard to get to.

Is fitting an air admittance valve fairly easy?

 

[houstonwehaveaproblem]

Just thinking, height may be a prob for the AAV as where it would need fitting is where the roof pitch comes down to the eaves. I havent crawled to that area yet but as you can see in the pic, there is a huge timber trimmer in the way.

The AAV would need to go up high??

 

[undertrained]

Yes relatively easy. You just need room to cut the soil pipe (if required) and use either a push fit type or solvent weld type. If possible you could extend the soil pipe into the loft and then fit air admittance valve, but if you can get at it just fit it there.

FYI - it does only work on a vertical section.

 

[undertrained]

Height shouldn’t be a problem. AFAIK you can fit quite low down.

 

[houstonwehaveaproblem]

Yes relatively easy. You just need room to cut the soil pipe (if required) and use either a push fit type or solvent weld type. If possible you could extend the soil pipe into the loft and then fit air admittance valve, but if you can get at it just fit it there.

FYI - it does only work on a vertical section.

Thanks

Im kinda assuming that the flexible ducting thats there has been attached to a small vertical section on the other end of the stack. So maybe its a case of removing the flexi pipe & push fitting the AAV?

 

[undertrained]

Thanks

Im kinda assuming that the flexible ducting thats there has been attached to a small vertical section on the other end of the stack. So maybe its a case of removing the flexi pipe & push fitting the AAV?

Sounds good to me

 

[houstonwehaveaproblem]

Sounds good to me

Will take a good look over the next day or so.

 

[Newboy]

It's worth remembering that a vented foul drain may still need to be vented - an AAV won't vent the system.

 

[houstonwehaveaproblem]

It's worth remembering that a vented foul drain may still need to be vented - an AAV won't vent the system.

Thanks

How would i determine this?

 

[Newboy]

Personal rule is that if the system is vented and any alterations are made then ensure that the venting is maintained.

 

[houstonwehaveaproblem]

Personal rule is that if the system is vented and any alterations are made then ensure that the venting is maintained.

The original soil pipe system has been altered due to building works. The old system had a vertical soil pipe that vented outside.

The new soil pipe runs horizontally with a fall then venting through a wall