A bathroom sink waste plug is a great final touch to any basin. Over time, you might want to replace the existing waste plug with a new one. Perhaps the one currently in place is damaged, or you want to switch up the colour of the waste plug to suit a new sink. You may even have a sink waste plug with the new basin. Whatever the reason, we’ll be able to provide you with the steps to fit your new waste plug in place easily.

A white sink with a tap, bathroom furniture, fixtures and fittings.


Table of contents


Know which sink waste plug you need

First, figure out which waste plug you need for your basin. The four main types are as follows:

  • Non-slotted waste
  • Slotted waste
  • Gated waste
  • Freeflow waste

Whichever waste is in your possession, each should have:

  • A top seal
  • A bottom larger seal and;
  • black fixing nut

 


Fitting a sink waste plug

You can fit a waste plug in a few short, simple steps.

Step one: Remove the larger seal and the fixing nut from the threaded shaft

Only the thinner seal should remain on the waste.

Step two: Ensure the thinner top seal is cupped upwards on the waste

Place it in the basin hole. Slotted wastes will have two holes and need to line up with the internal overflow holes in the basin. Make sure it is not blocked.

Note: Applying a silicone sealant inside the basin before slotting in the waste can create a watertight seal where the plug sits.

Step three: Fit the second washer to the waste

After fitting the waste into the basin, which could be through the countertop, fit the second washer to the waste. Fit it from underneath the cabinet, making sure it is cupped upwards.

Note: Apply a second bead of silicone for a more watertight solution if needed.

Step four: Secure the waste to the basin

Hand-tighten the black fixing nut, being careful not to overtighten, as this can risk damaging the plug.

Step five: (If applicable) Fit a bottle trap to the waste

Wipe away any silicone sealant with a cloth.

There you have it! The simple process needed to fit in your new sink waste plug.


Where can I buy a sink waste plug?

Right here at Clickbasin! We have a selection of beautiful waste plugs to fit your design and performance requirements.

Explore our range of bathroom furniture and plumbing supplies. Learn more about other plumbing concerns in our Help and Advice.

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