Rated 5 out of 5Â by reviewer1 This does meet Current Regs
This item was recommended to me by the LABC on a job 3 years ago. Since then , working in the same area but under different LABC officer, the lack of compliance became an issue. THIS UNIT HAS BEEN DEVELOPED TO ADDRESS WORK AT HEIGHT AND IS FULLY COMPLIANT WITH ALL REGULATIONS, Including Doc. H. Fit it, give your LABC the enclosed paperwork and thats that. Dont be misled or bullied. THIS UNIT PROVIDES ALL REQUIRED VENTILATION, CAN BE INSTALLED EXTERNALLY AND REMOVES THE NEED FOR OPEN VENTS. Venting the head of the drain with an open vent is redundant. This unit is the answer, but I guess some will say that an interceptor is a good move in the the chamber before the public sewer. MOVE ON
Rated 1 out of 5Â by Philty2 Not Building Control Approved
The Screwfix sales literature states this can be installed outside, and the Floplast literature quotes Document H of the Building Regulations regarding positioning on soil stack opening relative to windows etc, however it fails to mention that the same document also states that 'Air Admittance Valves should not be used outside buildings'. I had my External AAV rejected by Building Control, so will be returning it to Screwfix for a refund. I will also have to discard the shorter soil stack I was using with this AAV, and install a full length stack with the correct cage, as per Document H.
Rated 5 out of 5Â by turnip69 At long last
Now something to take away the need for the ugly stack pipes. Easy to fit and saves money on siol pipe and bends. Well worth the investment.
Rated 5 out of 5Â by geezza Air Admittance Valve
Great item, saved me having to have my soil pipe above the gutter of my loft extension.