What water supply do I have? - Gravity pumped

General FAQ

If your home relies on a gravity-fed water system, ensuring proper water pressure for your shower is essential. Gravity-fed systems often require additional components, such as pumps, to deliver a strong and consistent flow. In this guide, you'll learn how gravity-pumped water supplies work, what factors influence shower performance, and how to optimise your setup for the best results.

You will know you have this system if there is a cold-water tank in your loft and hot water cylinder in your airing cupboard with a pump.

How do I turn the hot water off?

To turn off the hot water, you need to locate the isolating valve (stop cock) and turn that off. You may have an isolating valve on the pipe coming out of the top of your hot water tank. If you are unsure, then we recommended seeking advice from your plumber or installer.

How do I turn the cold water off?

Locate the isolating valve (stop cock) coming out of the feed tank and turn that off.

Recommended Shower for this section:

If you have this system, you can install a mixer shower and having a pump will boost the flow rate and performance. For more information, please check out or range of mixer showers and pumps.

The schematic diagram above shows the most common set up for a pumped gravity system.

A standard low pressure gravity system has been coupled, with an inlet pump. An ‘inlet pump’ separately pumps the hot and cold water to the mixing valve where it is mixed together. There are special considerations that relate to pumping hot water - air and the hot water temperature. The cylinder thermostat is recommended to be set at 60°C. If air enters a pump in quantity, it suffers from ‘wheelspin’, that is the impeller spins but does not pump the water.

If you have any further questions, feel free to reach out to our customer service team for assistance. They’re happy to help!

 

Still need help? Book a professional service repair for your shower

☑ Repaired by Mira-approved engineers
☑ Guaranteed to use only genuine Mira parts
☑ In-warranty and out-of-warranty repair options are available