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Air Valve
Posted: Sun Sep 07, 2008 9:25 pm
by lancer
I have a double sink with the waste from each sharing the same pipe through the wall to the drainShould I fit an air valve to stop the syphone from the traps and if so should it be the furthest from the drain?
Posted: Sun Sep 07, 2008 11:30 pm
by plumbbob
There is no specific need to fit an anti syphon trap unless you are experiencing problems with the water seal being broken. If you do decide to fit a air admittance valve, it should be sited at the highest point which will be the furthest point from the drain.
Posted: Tue Sep 09, 2008 9:31 am
by furgazoid
I agree, but for the extra cost of less then £1 per trap, you cant go wrong with putting in anti-siphon traps
Air Valve
Posted: Tue May 12, 2009 6:04 pm
by lancer
Thank you for your replies. Sorry for the delay I have been to busy to check the site