Shower Pumps: Boosting Weak Gravity-Fed Showers
A shower pump boosts water pressure for showers fed from a gravity system — typically a cold loft tank and a vented cylinder — where natural pressure alone gives a disappointing flow.
A shower pump boosts water pressure for showers fed from a gravity system — typically a cold loft tank and a vented cylinder — where natural pressure alone gives a disappointing flow. It's a targeted fix for one bathroom rather than a whole-house pressure solution.
What it does
An electric pump, either positive (boosting existing flow) or negative head (drawing water where there's very little natural fall), increases flow and pressure right at the point it's fitted.
How it fails
Bearings wear out with age and use, the pump airlocks after work elsewhere in the system, or debris from an ageing tank clogs the impeller.
Repair or replace
A noisy or underperforming pump nearing the end of its life is generally replaced rather than repaired, since parts and labour rarely make repair worthwhile on domestic units.
Improve a weak gravity-fed shower
Tell us whether your shower is fed from a loft tank and cylinder, and how weak the flow is, and we'll recommend the right type of pump.
Questions we get asked
Does a shower pump installation need any registration?
No, this is plumbing and electrical work, not gas work.
Will a pump fix a mains-fed shower with low pressure?
No, pumps boost gravity-fed systems; low mains pressure is a different problem with different solutions.
Can I fit a shower pump myself?
It involves plumbing and electrical connections together, so we'd recommend having it installed and commissioned professionally.