Anti-flood valves

[silvershark]

My basement and garden patio has flooded during heavy rain caused by the combined foul and rain water drain backing up. There seems to be a number on in-line valves on the market which prevent this from happening. The cheaper ones <£100 do not seem to be suitable for foul water. Aco do one which relies on an electric motor to close the flap but looks very expensive. Forge valves have an internet site saying they have one for £500. I'm not a builder and wondered if any of you can help. Have you any experience or knowledge of these valves. Can you recommend one? Thanks

[flowjoe]

Dont bother with the cheap hinged valves, they fail far to often.

We usually install Forge valves because they are activated by a float but you will have to weigh up how deep your basement drainage is before you fit one and they will require a yearly clean out for maintenance

Hep-sleve still make an anti-flood gully http://www.specifinder.com/pdfs/204_pdf59.pdf which work if kept clean.


HTH

[silvershark]

Thanks very much for your help. The basement toilet and patio drain are connected to the front via one pipe running from the back of the house, then along the side under the driveway. I guess the best location is to install it part way along the drive. Do you what the difference is between the commercial and domestic forge valves is?

[flowjoe]

Depends on the layout of your system, most times we install them in the basement downstream of a cellar gully because this is where the surcharge occurs at the lowest point.

If its going outside on the main line drainage you will have to install a chamber for maintenance, a domestic unit is fine for your needs.

We are 7 miles from you SS if you need any assistance.



Edited By flowjoe on 1254163586

[silvershark]

Where are you based? Would be useful if you could come and have a look.

[flowjoe]

Ive sent you a PM SS with my details