Toilet not flushing corectly

mazda28 · 16 Dec 2007

Hope someone can help me here.

I keep getting problems with my upstairs toilet not flushing, this then slows the drainiage of my bath as well.

I have rodded the pipes and they are all clear of blockages.

What I did notice is that when I removed the vent from the large drainage pipe. The toilet cleared instantly, it hen flushes with no problem.

As soon as I put the vent back on I get the same problem.

Does this mean the vent is broke?

Or do I have another problem some where else?

Your help would be much apreciated.

Breesey · 16 Dec 2007

By vent do you mean air admittance valve?

mazda28 · 16 Dec 2007

i'm not sure mate. The toilet conects to a pipe about 6 inc diameter. This pipe goes down to the drains, it also goes upwards. In the top there is a plug with a vent in it, its like a big bung with vents all oaround it. When I take that out it flushes properly.

Thanks for your help.

Breesey · 16 Dec 2007

Sounds like an air admittance valve and it also sounds like it isn't admitting air!

Does it look like this?:

If everything is OK with it removed then a new one should solve your problem.

mazda28 · 16 Dec 2007

Yep thats it, so if i buy new one i should be sorted yes?

Breesey · 16 Dec 2007

mazda28 said:
Yep thats it, so if i buy new one i should be sorted yes?

Breesey said:
If everything is OK with it removed then a new one should solve your problem.

mazda28 · 16 Dec 2007

Thanks for all your help Breesey, very much apreciated.

mazda28 · 18 Dec 2007

Hi brought new air admittance valve, installed. However I still have the problem until I take it out. Do I have to do anything after I have install it?
Regards
Mazda28

Nige F · 18 Dec 2007

sounds like it was OK all along

The valve itself, that is .........there must be something wrong with your soil/vent setup

could be anything tho`

maybe positive pressue build ing up

because an AAV only lets air IN under negative pressure....long shot , it might be a blockage somewhere on the underground drain run.

mazda28 · 21 Dec 2007

Any ideas then guys?

Bahco · 21 Dec 2007

Perhaps you should not have a sub stack. Your property should be served by a soil and vent pipe open to atmosphere although it can be shared with a neighbour in some cases.

Do you have one?

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Toilet not flushing corectly

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