shower water pressure

We have a new INTA Trade-Tec Thermostatic Bath Shower Mixer and Kit installed but the shower is very low pressure. We have a gravity fed system. Is it possible to fit pressure boosting shower head to increase flow?

Asked by Janis on 29th Jan 2026
Expert Trade Answers
"Yes fit twin pump will give you full pressure

A shower pump will resolve your issue"
Answered on 29th Jan 2026 - Member since Jan 2020 - report
"Hi yes certainly you can fit a booster pump and that will increase the pressure"
Answered on 29th Jan 2026 - Member since Jan 2026 - report
"Possibly, but it’s all to do with how much water your header tank can hold. So that the pump doesn’t empty it before it refills itself. As a general answer. No you can’t have gravity hot water running correctly through that type of mixer tap"
Answered on 29th Jan 2026 - Member since May 2025 - report
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