Pump not working properly in new water system All aspects of plumbing questions and answers, help, tips and information

[davedewhurst]

Hi everyone so I've just installed a new water system and it isn't working properly... Any ideas?
It's an automatic pump fed by a break tank and the pump only comes on every now and then.... Upon firther research it seems I've bought a pump with a flow switch rather than a pressure switch so am I right in saying it'll only switch on when there's already a flow?
This is my pump:
https://www.ebay.co.uk/itm/373482472536

I just want the pump to come on when I open the tap and switch off when the tap is closed.

Any advice gratefully received!
Dave

[stoneyboy]

Hi davedewhurst
You have fitted a pump which needs mains pressure to operate correctly. The initial flow needed to turn on the flow switch is not enough with a tank fed system. Suggest you replace the pump with a booster pump like this:
https://www.screwfix.com/p/salamander-p ... 0bar/3693p
You may have to go for a more expensive pump if you are supplying many outlets.
Regards S