How do I know what size my soakaway should be?
Take a look at our PDF to see how large your ideal Soakaway set needs to be, and how many crates are needed.
40mm Air Admittance Valve White
Stops the syphoning effect that sometimes occurs in a Soil System, the main symptoms of which are drain odours accompanied by a gurgling sound that occurs as the trap seal is removed by syphonage.
This ingenious valve opens when required to allow air to be drawn into the pipe, balancing the pressure. The clever design means that the air flow is only one way, hence no drain odours can escape.
This fitting is connected to a 40mm waste pipe using a compession seal (the same as a trap connection). It is usually sited on a piece of pipe connected to the branch of a tee piece.Discount Delivery Returns
If you spend over £150 you'll receive a 2.5% discount. You currently need to spend a further £150.00 to qualify.
Orders placed by 12.00 noon will be delivered the next working day. Orders placed at weekends will be delivered on the following Tuesday. Click here for further details.
You can return any item for a refund within 28 days of your purchase (carriage charges excluded). Click here for further details.
Watch our video where we illustrate how and where to place the clips depending on the Soakaway installation layout.
Watch our video where we explain the benefits of our 0 to 90 degrees Adjustable Drainage Bends.
Watch our video to learn how to connect PVC pipes to existing clay drains using a flexible adaptor.
Watch our video tutorial on how to join Underground Drainage Pipes, from cutting to chamfering and joining.
Watch our video where we explain what Bottle Gullies and P Trap Gullies are, and the key differences.
Watch our video where we present some useful hints & tips to keep drains clear and avoid blockages.