Monday, February 1, 2016
In my van I have a pressure / flow rate regulator valve of the brass variety and the pressure, or should I say the flow rate inside the van has always been very poor, ie. wait for ages to fill a bottle. I had a look on the net for any mention of this problem and someone mentioned that the easy fix was the spring (C) inside the valve.
When you dismantle the valve, you only need the take parts (A) and (E) apart and then remove the spring (C). In the photo I have expanded all the parts so that the viewer can understand the way it works.
When the pressure in the van increases, it pushes the plunger (D) compressing the spring (C) back into the regulator part (B). It is a little hard to see, but part (B) has some small holes around the middle where the water entering the device through (A) continues to the inside of (B, C and D) and exits through (E). The pressure inside the van forces the black tip of (D) back inside (B) and thus closing the holes in (B) and thus reducing the amount of water able to flow through device.
The only thing you need to do is to stretch the spring (C). It is a tough little bugger and it took all of my strength to stretch it just an eighth of an inch or 3 millimeters. The holes in (B) aren't much bigger, so it would be pointless to stretch the spring (C) any more than that.
Reassemble the device being careful not to damage the 'O' rings. The pressure in my van now is such that I can easily wash all of the soap off me in an instant.