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I have an update to this problem. It went away for a time, but now it's back. The problem only happens with high pressure soap. As in, when you select high pressure soap, the Dole Valve does not allow mixed water to enter the reservoir and it starves the pump. Select any other wash cycle and...

The old Dole valve was only leaking, that's what I changed it. I was almost tempted to put it back on, but it was pretty old. I gave up and we had a guy come out today. He read out the relays that MEP001 and 2Biz were talking about. I couldn't stay with him and all I know is that he found a...

I have a definite feed problem that I don't understand. It all goes back to that stupid pink solenoid valve on the backside of the reservoir. See pics above. The feed hot and cold water hoses connect to the mixer solenoid valve (Dole Valve) on the backside. Inside the reservoir, there is a float...

https://plus.google.com/photos/107546366812377727333/albums/5958924564005506193?authkey=CJnF97HDhPaHeQ Thank you for all the help again. I've got some updates if anyone has other ideas. I tried to post some pics of the pump setup there, but I don't know if it worked. Also, there's a link here...

Really appreciate the responses! Thank you for the replies! It's great to have a place where I can look for help, especially since there are no maintenance manuals or anything with this car wash. I'll try the inlet water idea today to see if it changes anything. I was thinking an issue with...

Something else I wanted to add. About a week before the pump started acting up, I changed a leaking valve in the back of the intake reservoir for the pump water supply. It looks to me like a mixing valve, it's pinkish and has cold and hot water lines connected. The thing is, now the water is...

Hello everyone, I've been following this forum for a few months. The car wash I work at has a Cat 30 pump (direct drive) that recently quit working. Here's what it's doing: When I activate the test switch, sometimes it will come up to pressure just fine, but more often now, it stays at zero...