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The Bath Waste and Overflow (BWO) is an important part of your bathtub. It is a fixture that has both a stoppable drain and an “overflow” portion that allows water to drain away before it overflows at the top rim. “Bath Waste” refers to the used water after you take a bath or shower.

A bathtub drain assembly is a series of plumbing parts that transport the waste water from a bathtub, feeding the water into a large drainpipe. ... The tub drain stopper is also part of the bathtub drain assembly, which controls when the water can flow out of the bathtub through the main drain.

Plastic waste pipe is available in 4 basic sizes (external diameter) for different plumbing uses: 21.5mm - for overflows such as cold water tank, cisterns etc. 32mm - for hand basin waste pipe. 40mm - for sink and bath waste pipe.

The waste water fittings fitted to baths are fairly standard although there are various different types of method for fitting them to the waste outlet hole of the bath. The main difference is the height of the fittings under the bath, this can be important where there is limited space between the bath and floor.

The rough in fittings are universal however you will need to chose which type of drain stopper you want. ... a toe kick type which is opened or closed by tapping with your toe, or a lift & turn type that fits in the drain opening and requires lifting and turning it by hand.

They work by a connection between the drain stopper and a lever via a rod mechanism hidden behind the bathtub. When the lever is up, the stopper is held in place, keeping your tub filled with water. When the lever is moved down, the stopper lifts and the tub drains.Oct 7, 2020

If you see water leaking, it is very likely you have loose connections in the drain fitting or the drain trap below the tub. Tighten or repair them as needed. If running water in the tub causes no leaking, run the shower instead.Sep 12, 2021

• The waste and overflow assembly is the drain under the tub spout in your bathtub that makes sure that if you run too much water into the bathtub that it doesn't overflow onto the floor. If you have a bathtub, there are several different reasons to make sure that you need to keep your waste and overflow drain clean and functional.

• Step 1. Remove the stopper. There are many different types of stopper,and the first thing you need to do before you can remove the bathtub drain is ...
• Step 2. Remove the screen.
• Step 3. Heat the drain to soften the sealant.
• Step 4. Remove the drain.
• Step 5. Clean the seal.