Durgo / Air Valve - Can I Use The Small Type For A Toilet ?

Durgo / Air Valve - Can I Use The Small Type For A Toilet ?

Author
Discussion

Renovation

Original Poster:

1,763 posts

120 months

Sunday 23rd November 2014
quotequote all
I have used the std 4" durgo for toilets in the past but have just found out that there are smaller versions that fit to 40mm pipe.

Will these let enough air through for a toilet or are they only for sinks ?

(I'd want to plumbing it to the sink which is connected to the toilet)

All my bathrooms have their own run to the inspection chamber so they are effectively all at the end of the run - so will durgos be acceptable ?

It is a private sewer to my septic tank if that matters.

robwilk

818 posts

179 months

Sunday 23rd November 2014
quotequote all
Ive used one, a Hepvo in one of our bathrooms works perfectly, I would recommend them.


B17NNS

18,506 posts

246 months

Sunday 23rd November 2014
quotequote all
I've used 40mm before without problems.

shtu

3,407 posts

145 months

Monday 24th November 2014
quotequote all
Renovation said:
It is a private sewer to my septic tank if that matters.
It does. From the Klargester Alpha install guide,

"An additional local air inlet can be fitted to the tank
where circumstances require it. If there is no open soil
stack (e.g. drainage systems with air admittance
valves only), then the septic tank must be
independently vented."


Renovation

Original Poster:

1,763 posts

120 months

Monday 24th November 2014
quotequote all
Thanks.

The tank is vented...

The lid's broken !




I'll ensure it's vented when I get around to fixing it.