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The heads are fine. No pulsating or anything like that. I think part of the problem was one of my pressure gauges was actually bad. I replaced the seals and it looked like I only gained 50psi. I replaced the gauge and now it reads I gained 150psi. All the bays are 1050 now. One just needed new...

I just put a new tip on and gained 200psi. Probably should have done that years ago...

I am still learning my terminology here...I don't actually use an unloader. I use a pressure relief valve that bypasses outlet water when the trigger is released and sends it back to the pump. The pressure relief valve works as a pressure regulator essentially. My pressure gauge sits on top of...

Yeah, I use a spring clamp to keep the trigger pulled. Probably should find a wife...lol It sounds like you use a weep gun as well but instead of measuring unloading pressure, measure the idle pressure further along the line. I would imagine my idle pressure is about 150psi as well (My pressure...

Hello all, I just got a poor Google Review about my pressure being lower than other self-serve car washes so I figured I better reach out to other owners. I noticed that when the high pressure is running on my newest CAT 310 it reads 1100 PSI and then drops to 1050 when the trigger is pulled...