10 Things You Should Know About Shower Pumps   January, 2020

Choosing the right shower pump can be daunting, especially with such a wide range of options available from twin to single, positive to universal, 1.5 bar to 3.0 bar. So, to make things a bit easier, we have collated a list of 10 things that you should know about shower pumps:

• As a general rule, if the cold water tank is above the outlet point and there is a flow of at least 0.5 litres per minute from the outlet, a positive head shower pump is required.
• If the cold water tank is below the outlet point, or there is little or no flow, a universal head shower pump is required.
• Fitting a shower pump at the base of, or below, the hot water cylinder is the best option for your installation. (However, if you have to install a shower pump in the loft, please call our technical team for advice on the best product and method - 01793 820142.)
• A shower pump with a regenerative impeller is specially designed to aid removal of air generated in the system.
• Pumps with regenerative impellers also offer slightly lower flow rates compared to centrifugal pumps, and are ideal to use when pipework is complicated by many bends and elbows.
• Pumps with centrifugal impellers are highly efficient but less tolerant to air generated in the system.
• Centrifugal impeller pumps offer higher flow rates than regenerative pumps, and are best to use when the pump is situated well below (<2m) the height of the cold water storage tank, and when pipework and bends can be kept to a minimum.
• Brass-bodied shower pumps with brass impellers, rubber feet, and regenerative design are among the quietest type of shower pump on the market.
• Air can build up in a shower pump installation over time and when not used regularly. It can cause a variety of issues including excessive noise, temperature fluctuation etc, but a simple air test can clear out your installation and solve the issue. Click here to find out how to complete an air test.
• When choosing the bar rating of your shower pump, bear in mind that some modern showers and taps do not work below a certain pressure. If you aren't sure, contact our technical team on 01793 820142.

Follow our Shower Pump Q & A Guide for more information on shower pumps. If you would like technical assistance, please call 01793 820142.