Skip to content

How to test water pressure

Struggling with a far from powerful shower? Tired of waiting an age for your bath to fill? You may be suffering from low water pressure in your home.

If you’re unsure whether you are or not, is here to show you how to test your water pressure.

Testing water pressure can be done by testing your water flow, as a slower flow usually indicates that you have low water pressure. Generally, there are two ways of doing this, as we’ll explain below:

Testing your water flow at home

To take the test, follow these easy steps:

  1. Place your jug under the problem tap or shower.
  2. Turn the problem tap or shower on full.
  3. Time how long it takes to fill the jug to the top.

Once done, enter the amount of water collected and the time taken to fill into our flow calculator — you can find it over on our testing page. Click calculate your flow to discover if you have good water pressure or if you need to improve your rating.

Testing your water pressure with a weir cup

Alternatively, you can test the water flow of your home by using a weir cup, a piece of specialist equipment often used by plumbers.

To use the cup, simply place it under the problem tap or shower and turn it on full. The water flows into the top of the weir cup and out the side of it, which has a gauge on it to allow you to calculate the flow of the tap. Generally, a reading of anything less than 10 litres per minute can be improved.

By carrying out a simple test, you can identify issues with your home’s water pressure, allowing you to find the right solution for you.

Please visit our Fixing The Problem page to find out the right solution for you or Find A Plumber here.