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    High pressure soap, rinse or wax tanks filling up by back flow?

    So continued thanks to everyone, my picture could tell a lot if I was not tech slow at posting it. When looking at the front of my cat pump 530 the hoses from tanks go into the bottom left. They come up to a four way fitting. The top of four way has a 4 inch nipple that goes to a union. At...
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    High pressure soap, rinse or wax tanks filling up by back flow?

    Jim Coleman pump stand. I have a picture but I'm not sure how to attach it at the moment
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    High pressure soap, rinse or wax tanks filling up by back flow?

    Thanks for writing 2 BIZ, I assume unloader could also be called spray gun....I don't know what we have but I am about to order new this week so your info is Timely...I think I will look for the cv inside, looking in catalog at spray guns and do not see cv mentioned in any of the brands?...any...
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    High pressure soap, rinse or wax tanks filling up by back flow?

    Thank you for your thoughts!
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    High pressure soap, rinse or wax tanks filling up by back flow?

    Thanks in advance, I am fairly new to the business and still straightening out some issues. All check valves have been changed in the attic but without consistency the high pressure rinse water tank level will rise and overflow at night and sometimes not the rinse tank.... last night the soap...
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