Description
The LavaTap 110mm Air Admittance Valve is a compact, maintenance-free venting solution designed for use in UK soil and waste systems. Featuring a female socket with a built-in rubber seal, it allows for a simple slide-on installation with both push fit and solvent weld pipe systems—no cement or tools required. This one-way valve opens automatically when negative pressure occurs in the drainage system, allowing air in to prevent trap water from being pulled away. It then closes tightly to block odours and sewer gas from entering your home. With no moving parts, it operates silently and reliably over time. Ideal for use where roof venting is impractical—such as basements, kitchen islands, or multi-storey buildings—the LavaTap valve must be installed vertically, in a ventilated, accessible location, at least 200 mm above the flood level of the highest connected fixture. A reliable choice for modern plumbing.