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Check Valves
Question, when I was winterizing my unit, I was having trouble pumping the antifreeze into the system. I have a dedicated line for getting antifreeze from the container, the water pump pulls it into the unit. Anyway, it had a back flow valve on the line, which I though was weird and might have caused the issues I was having getting the pump to suck up the antifreeze. While looking at the fittings, I noticed that the black tank flush did not have a back flow preventer, and I think it is supposed to. SO after seeing this, I swapped the valves, so the antifreeze inlet no longer had the check valve, and the black tank flush would not have one. Figured maybe it was a mix up during the build?
Anyone else witness this, thoughts on it? Want to make sure that by switching the valves I was doing what made sense...
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