Each waste system will be slightly different, so you should follow manufacturer’s instructions for details on how to assemble the specific parts of your waste system.
This is an example of a diagram of a lever controlled pop up waste system.
This is an example of a diagram of a knob controlled pop up waste system.
Step 1 – Insert waste
The first washer will be placed onto the waste so it sits under the drain shoulders or flange, and/or you may be advised to use a suitable sealant, such as silicone, to securely fix the waste and prevent leakages.
The waste is inserted into the plughole.
Step 2 – Seal waste
The waste assembly will usually come with washers which fit either side of the drain hole on the waste neck and act as a seal around the drain hole as it won’t leak.
An alternative to the supplied seals, or an option for replacing broken seals, is to purchase a basin/bowl sealing kit. These are inexpensive and are considered to be effective seals. These kits contain a foam washer, a tapered rubber washer and a poly washer that can be fitted without the need for a sealant.
When using a waste sealing kit, the foam washer goes onto the waste before it is installed and the rubber washer goes underneath the waste, narrow side at the top, the poly washer is then fitted.
Step 3 – Screw in waste
The pop up installation tool can be used to line up the overflow slots with the overflow. The T-bar handle is held to keep the waste in place while the lock nut or waste connector screw is tightened.
The lock nut or back nut is a large nut which is screwed onto the waste to secure it into the drain hole, they will either be made of metal or plastic, plastic lock nuts should be tightened by hand so they don’t split.
Step 4 – Connect control system
The control system for your pop up waste assembly can now be set up according to the manufacturer’s instructions.
Entire pop up assembly kits can be purchased as well as individual replacement parts, such as stoppers, seals or connection rods.