Salamander Single Impeller Shower Pumps

A single impeller pump boosts either the hot or the cold supply so both feeds are equal at the outlet, which is exactly what you need if one feed is noticeably weaker. You’ll see benefits if your shower is weak because the hot side can’t match the cold, or if a single basin or shower loses pressure when another tap is used. These pumps are specifically for domestic low-pressure systems, so they’re a straightforward fix for routine pressure imbalances. fitting a single impeller to the hot feed will stop a warm shower from falling away when someone else runs a cold tap.

Pumps up to 2.0 bar provide a small to medium increase in pressure, ideal for modest improvements such as strengthening a single shower or basin. Pumps over 2.0 bar give a much bigger boost and suit heavier demands, a family power shower or when you want stronger flow to several outlets. The range includes outputs from around 1.5 bar up to 3.6 bar, so you can match the boost to how weak your supply is. If you only need a gentle improvement, a 1.5–2.0 bar model will be quieter and more economical than a 3.6 bar unit.

Regenerative pumps are often more compact and can give a smooth flow for small to medium boosts; they’re typically good value, as with the CT85XTRA 2.5 bar. Centrifugal pumps, such as the RP120SU 3.6 bar, usually deliver higher flow at higher pressures and suit bigger demands. Regenerative units can be quieter and efficient for single-shower use, while centrifugal units handle multi-outlet or high-flow situations better. Match the pump type to how many outlets you expect to run and how strong you need the boost to be.

Yes. Brass-bodied pumps are generally tougher and more resistant to wear and heat, so they’re a good pick if you want long-term durability. Plastic-bodied pumps are lighter, often more affordable and still suitable for most domestic installations. If your water is hard or you want a heavy-duty option for a busy family bathroom, brass is a sensible choice; for a loft-mounted or budget-conscious solution, a quality plastic model will usually do the job.

For heavier use with a power shower plus another outlet, go for the higher-output models such as the Salamander 3.6 Bar Single Universal Centrifugal RP120SU or the CT Force 30 SU 3.0 bar; both are designed for substantial boosts. If your needs are lighter, a single shower and occasional basin use, a 2.4–2.5 bar option like the RP80SU or CT85XTRA gives a good balance of flow and economy. Prices in the included in our range range reflect performance too, with budget-friendly regenerative options around the current product price and higher‑output centrifugal units nearer the current product price.