Just a trickle from the tap

NewForestKnight · 2025-06-20T10:33:52+0100

Hi. I only seem to get a slow trickle of water from my tap. I've been through similar threads but most seem to be in relation to complete non-function of the tap.

When I turn on the tap, I hear the pump whirr so that seems OK, but just a steady trickle comes out. Not even enough really for teeth brushing / hand washing.

I've topped up the fresh water tank, tried it with the filler cap off in case of airlock, even tried sucking really hard on the tap as suggested on a thread here incase of cavitation in the pump. All with no luck - any further suggestions? We're off on a longer trip shortly so would be good to get this sorted.

WelshGas · 2025-06-20T11:35:15+0100

NewForestKnight said:
Hi. I only seem to get a slow trickle of water from my tap. I've been through similar threads but most seem to be in relation to complete non-function of the tap.

When I turn on the tap, I hear the pump whirr so that seems OK, but just a steady trickle comes out. Not even enough really for teeth brushing / hand washing.

I've topped up the fresh water tank, tried it with the filler cap off in case of airlock, even tried sucking really hard on the tap as suggested on a thread here incase of cavitation in the pump. All with no luck - any further suggestions? We're off on a longer trip shortly so would be good to get this sorted.

It's a simple system. Pump, pipe,tap.
The tap electrical connection works as pump starts.
If the tap was semi blocked one would expect a low volume high pressure jet not a trickle.
Pipe, twisted/compressed. Check pipe under sink attached to tap.
Next, more involved.
Open water tank top lid. Check pipe to pump is properly connected both ends.
Finally, pump. It may not be running at full speed due to age/ wear. New pump, or low voltage .
Back to tap. Disconnect electric plug from tap ( found wrapped in foam and pushed up on the R side of the sink bowl underneath- remove Cutlery draw for access ) now bridge the 2 contacts in the plug Not Connected to tap using a paperclip or wire. Open tap. Good flow? If so high resistance on tap switch. You can replace tap or try to disassemble and clean switch contacts.
If there is no change in flow Check voltage at pump connector using multimeter if less than 11volts then you need to start checking the wiring connectors back to the 5amp fuse under front passenger seat.