Whale FP 0814 external water pump pressure (1 Viewer)

[Sue and Rick]

I’ve looked at the product information but it gives no explanation about altering the cut off pressure. Ours runs up to 2.6 bar. It’s supposed to be 2.0. Problem being when heating the hot water up the water expands and takes the pressure up to near 3.0bar which is what the pressure release valve is set at. Thus a small trickle. It did this last year and deposited some crud on the seal and it leaked all the time.
Any one had one in bits and knows if it has an adjustment screw? Non visible on the exterior.

 

[Cush]

I have same pump and had “leaking” issues. Wasn’t able to measure the pressure but figure the truma dump was stuck / had grit in it. rigged up a non pressure release valve and the problem stopped But have a pressure release to got next time i’m in the van.

keen to learn how to measure the pressure.

Cush