Sureflo pump

[Davsal]

I recently converted my own van and the pump for the water to the sink "pulsates". It seems to be repeatedly priming itself. Never having done a conversion, is this how they work? I did the conversion over the cold winter and the water froze in the pipes etc a couple of times. Any help or suggestions. Cheers, Dave

 

[AndyC]

If you mean that it keeps switching on even though you have no tap turned on, either there is a leak in the system or the pump's internal non-return valve is damaged and allowing water back into the tank.

If you mean that it switches on & off rapidly when you have a tap turned on, what's happening is that the pump is reaching its cut-off pressure too quickly. You either need to increase the flow, increase the pump's cut-off pressure, or fit a pressure accumulator in the system.

AndyC

 

[Deleted member 5759]

You need to fit an accumalator after the pump between it and the taps/shower.

It builds up a pressure and stops the pump constantly switching on and off, not expensive.

Peter

Fiamma Water Expansion Tank Acumalator A20, Accumalator Tank, UK

Fiamma Water Expansion Tank Acumalator A20
The Fiamma Water Expansion Tank Acumalator A20 eliminates the pulsating operation of the pressureswitches and assists the flow of constant water at the required quantity.
It will assist in lowering the water consumption and will extend the life of both the pump and the water boiler (pre charged at 0.9 bar - 13.05 PSI)
Fiamma Water Expansion Tank Acumalator A20 Specifications
Weight;0.3kg.
Size;23.5cm x 15cm x 10 cm