My hot water tank for my high pressure soap and wax keeps overflowing. I thought it was the inlet float/fill valve. I changed it but it still fills up when im not there and overflows. So I thought maybe it was coming back up from the outlet in the bottom of the tank. I drained the tank and had someone go to each bay and use high pressure rinse as I watched the tank but no water backed up in it. Im not sure if it only backs up when using high pressure soap or wax? Didn't want to try those functions while the tank was empty. Any help is appreciated.
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Problem with water backing up or filliing up in hot water tank.
- Thread starter APW
- Start date
MEP001
Well-known member
Is the RO reject plumbed to the tank?
If not, it pretty much has to be either the float valve or a check valve on one of the pumps. The easiest way to test without a second person is to run a bay on soap or wax for about half a minute, then switch it to rinse and feel the check valve. If it gets cold, it's bad.
If not, it pretty much has to be either the float valve or a check valve on one of the pumps. The easiest way to test without a second person is to run a bay on soap or wax for about half a minute, then switch it to rinse and feel the check valve. If it gets cold, it's bad.
