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How to Fit a Basin Waste

Most bathroom work and plumbing should typically be carried out by a trained professional. Be it installing a bath, fixing your plumbing or even just replacing your taps, having a professional work on it will guarantee that you have a long-lasting and sturdy installation that won’t cause issues in the future. However, there are some projects, such as fitting a basin waste, that are easy to do alone and can save you a lot of time and money. So in this article, we’ll be taking a look at how you can fit a new basin waste on your own with just a couple of tools.

Picking a basin waste

First, pick the basin waste that you want to install. They don’t fluctuate much in price, even for luxurious-looking options. Take a look at some basin waste options to see which would fit the look of your basin or bathroom. If you’re also planning to replace your taps as well, then you’ll find that a basin waste can sometimes be included in the purchase of a set of taps and they’ll match the overall design. However, replacing taps is outside the scope of this post and we’ll only be covering the basin waste itself.

Preparing your tools and materials

As with any DIY project, it’s a good idea to prepare your tools and materials before you start your work. For this, you’ll need:

  • Cleaning equipment (cloth, wipes, etc)
  • Bucket
  • Pliers
  • Sealant gun (with silicone sealant)
  • Basin waste and included accessories (nuts, washers)

The project should only take a couple of minutes, but this might change if your basin is installed in a difficult location and requires you to remove the entire basin from a countertop.

  1. Turn off the water supply

While you won’t be working on the taps, this can prevent accidents should you accidentally knock the taps while working on the basin waste.


  1. Remove the basin if needed


First, you remove the basin from a countertop or stand so you can access the plumbing. This might require a different technique depending on the type of basin you have. If your basin is attached to a surface like a countertop or even the wall, then you’ll likely need to cut off the sealant so you can remove it and access the old basin waste. If you already have access to it, then you can skip this step.


  1. Remove existing basin waste


Place the bucket underneath the basin trap to catch any waste water. Unscrew the fixtures that connect your basin waste to your plumbing by hand. Next, use pliers on the existing basin waste’s nut to loosen it then unscrew it by hand when you can. Now you can remove the old basin waste. If a lot of silicon sealant was used when installing the previous basin waste, you may need to pry it free. If the sealant is visible, you can cut it using something like a screwdriver then pry it off. After it’s free, use your cleaning equipment and some hot water to scrub off any remaining residue. You may also want to give the basin a good clean at this stage.


  1. Install the new basin waste


If your new basin waste is assembled, remove the rubber washer and hexagonal nut. Apply some silicone sealant to the edges of the hole in your basin then slot the waste through it. On the other side, apply more silicone sealant to ensure it stays watertight. Now you can screw on the rubber washer and hexagonal nut to secure it in place.


  1. Attach the plumbing


If you had to remove any plumbing when removing the old waste, now’s the time to reattach the plumbing, waste trap and so on.


  1. Test for leaks


You can now test for leaks, but it’s recommended that you wait at least 24 hours (or however long it takes for your silicone sealant to dry) before actively using the tap. If you’ve noticed a leak, you’ll want to take the trap and waste apart to check that you’ve not made any mistakes and that there’s a tight fit.


  1. Install the basin to the wall or countertop


If you had to remove the basin from the wall or countertop, then this is where you’ll want to apply silicone sealant in the same places you removed it before and firmly attach your sink back in place. However, we do suggest that you wait 24 hours and test for leaks to thoroughly ensure there are no problems first.


That’s all for fitting your basin waste. It’s a quick project that takes no longer than 10 minutes if you have the right tools and materials available and don’t need to remove your basin from the wall or a pedestal. If you do, then it can take a couple of extra minutes. If you’d like some assistance in installing a basin waste or picking one, feel free to get in touch with us and we’d be glad to help.