I can not get my pressure to increase on my 310 cat pump. It won't go more then 1100.I have changed tip ,new gun, tighten belt,new unloader(nut type),I can decreases pressure with unloader but can not increase more then 1100.I have ,a 2504 tip on now but if I put on 2505 I can not get more then ,900 psi. I have had some pressure problem but easy fix usually like unloader or dirty tips..... I usually run pressure at 1200psi but at time and increase due to dirty quads.
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Can not increase water pressure
- Thread starter Don
- Start date
I.B. Washincars
Car Washer Emeritus
Check to see if other bays are weeping when this one is running. My bet is that you have a bad check valve and part of your water is going out to other bays via the weep system or possibly sfr.
MEP001
Well-known member
The valves and seals in the pump should be tight enough to keep it from dripping from the wand as long as the tank that supplies it isn't more than a couple feet higher than the wand. If you have only one bay dripping like that, your problem is likely with the pump. Inspect the valves and the o-rings on them, and if that doesn't fix the pressure problem inspect or change the seals.
