Bath Wastes & Plugs

Our quick guide below covers the key points about bath wastes; sizes, types, installation tips and the best way to seal them.

 

What is a bath waste?

A bath waste lets water drain safely from your bathtub once you’ve finished using it. It connects the plug hole to the drainage system, ensuring water flows away efficiently while helping to prevent overflows. Most bath wastes include the plug, overflow and the connecting pipework hidden behind the bath.

There are several styles to suit different looks and needs. Plug and chain wastes are the traditional choice, perfect for classic or period-style baths. Pop-up wastes use a simple turning dial to raise or lower the plug; a practical option that keeps your hands out of hot water. Finally, click clack bath wastes offer a fuss-free design where a quick press opens or closes the plug.

 

Are bath wastes a standard size?

Yes, bath wastes are a standard size, making them easy to replace or match with most modern bathtubs. The typical measurement is 1½ inches (40mm), designed to handle the greater volume of water used in a bath compared with a basin. This size also applies to the connecting trap and waste pipe.

 

Is it easy to replace a bath waste?

Bath wastes, whether pop-up, click clack or traditional plug and chain, are designed to make installation straightforward. You’ll need basic tools like a screwdriver, pliers and pipe cutters, as well as some plumber’s gold or sealant to ensure a watertight fit. The process involves removing the old waste and overflow components, cleaning away any sealant and fitting the new waste so it sits securely with the correct washers and seals.

 

Should you use silicone when fitting a bath waste?

Yes, applying a silicone sealant is recommended when fitting a bath waste. It works alongside the washers, rubber seals and nuts to create a watertight finish, preventing leaks and ensuring everything sits securely. For pop-up bath wastes in particular, silicone helps avoid overtightening, which can interfere with the mechanism and stop it working smoothly.