Drainage Non Return Valve


The non return valve simply pushes into the end of the outflow pipe
in your manhole and the wraparound seal does the rest.
The backwater valve allows water and waste to pass out
from the property, but allows nothing back in as the
valve’s resting position is shut… tight. So no backflow through your toilet or plugholes during flooding.


According to some data, about half of all flood claims are due to back-filling of sewerage pipes. This causes ‘foul’ water to flood the property from the inside by flowing back via toilets, plug holes, waste pipes and so on. No matter how many flood barriers or how good your wall sealant, they do not protect against flooding from inside.
The traditional solution to this problem has been to sink a new manhole outside the property and fit non-return valves to eliminate the possibility. But this is a very expensive and time consuming process and we thought that there must be a better way!
As a result we have designed and patented a unique Non-Return Valve that will simply push-in to your current pipework. Equally as effective as the traditional solution the valves can be fitted in minutes and do not require any specialist expertise or equipment.
Available in a range of sizes our Non-Return Valves can be fitted above and below ground and will completely protect your property from the threat of back-fill.

Non Return Valves in situ in a manhole
Non Return Valves in Situ in a manhole


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