Soil & Vent

Soil and vent pipe products are essential for managing wastewater from toilets, basins, and baths, transporting it safely away from the property through a sealed stack system. Whether you're completing a new installation or carrying out repair work, having the right fittings to hand ensures leak-free connections and a compliant drainage system throughout.

Our Soil & Vent Range

McMahons stocks a practical selection of 110mm uPVC soil pipe and compatible fittings for domestic drainage installations.

• Soil pipe 110mm x 6m - Grey - a standard 110mm grey uPVC soil pipe in 6m lengths, suitable for both domestic and commercial soil stack applications. Can be cut to length on site using a fine tooth saw.
• Bossed pipe couplings 110mm - black uPVC couplings joining two 110mm soil pipes while also accepting a 32mm or 40mm waste connection, allowing branch connections from basins, baths, or appliances into the main stack.
• Soil pipe reducers 110mm x 50mm - grey reducers allowing connection of 50mm branch pipes into a 110mm soil system, available in single-hole and double-hole versions for one or two 50mm connections.
• Strap-on boss reducers - white reducers for reducing strap-on boss fittings from 50mm to 43mm, and from 43mm to 36mm, for connecting smaller waste pipes into the soil stack.
• Soil pipe rubber adaptor 50mm - a push-fit rubber adaptor that inserts directly into a soil pipe to accept a 50mm waste pipe, compatible with both solvent weld ABS and push-fit polypropylene systems.

For broader drainage and civil products, explore our full Civil & Drainage range, including Underground Drainage & Ducting for below-ground systems.

When specifying soil pipe fittings, always confirm the pipe diameter and waste connection size before ordering. The socketed end of soil pipe should always face upwards during installation to maintain watertight joints throughout the stack.

Why Choose McMahons for Your Drainage Products?

With over 190 years serving Irish builders and plumbers, our branches stock the core drainage products needed to keep installations moving. Our knowledgeable team can advise on compatible fittings and system requirements for your project. Find your nearest McMahons branch for expert guidance and trade pricing.