Clarke BPT pumps
Clarke CBP900 1″ 900w garden watering booster pump 7239201
- Established 1975
- Trusted by thousands of customers
A weak sprinkler or a hose reel that loses its jet halfway down the garden is almost always a pressure problem, not a flow problem. The Clarke CBP900 boosts the supply to an outside tap so sprinklers, hose pipes and reel systems get the pressure they need across the whole garden — and it starts and stops itself automatically as taps and valves are opened and closed.
More about this product
Garden watering booster pump
If a sprinkler barely reaches across the lawn or a hose reel loses its jet halfway down the garden, the cause is almost always pressure, not flow — most outside taps run off the same low-pressure feed as the rest of the house. The Clarke CBP900 sits in the supply line to the garden and boosts that pressure, giving sprinklers, hose pipes and reel systems the push they need to work properly across the whole plot, not just near the tap.
It’s a self-contained 900W multi-stage unit with automatic start/stop control built in, so it switches on the moment a hose or sprinkler valve is opened and switches off again as soon as it’s closed — no manual switching, no timer to set.
Suited to sprinklers and hose pipe use
Specification
| Max output | 97L/min |
| Maximum head | 32m |
| Motor | 900W / 230V |
| Max operating pressure | 3.2 bar |
| Auto-start point | Below 1.5 bar |
| Connection | 1″ BSP |
| Protection | Dry-run protection, LED status indicators |
| Operation | Low noise, quiet running |
Frequently asked questions
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Clarke CBP900 1″ 900w garden watering booster pump 7239201. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a water booster pump?
A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.
What is the difference between an inline booster and a tank-and-pump booster?
An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.
What is a variable speed booster pump?
A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.