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Old 10-29-2019, 10:17 PM   #1
Junior Member
Join Date: Jan 2018
Posts: 26
Antifreeze port

I have a 2018 Sandpiper with an antifreeze inlet. The instructions say close the tank valve and open the inlet valve. I assume that means the antifreeze hose but I am not sure.. Then just turn on the pump switch inside. I have already drained all the lines, set the heater bypass switch, drained the heater, removed the filter cartridge and opened all cold water faucets. Just not sure about what inlet valve they are talking about. Sorry if these sound like silly questions. I lived in the RB for two winters while building a house so its the first time I ever winterized.
Appreciate any advise and help Zi can get
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Old 10-30-2019, 12:36 AM   #2
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Posts: 5,131
Some where along the pipe where you add anti-freeze, there is a valve that controls where liquid going into the water pump comes from. Either AF or fresh water from the FW tank. On my trailer, it is just before the intake on the pump itself. I'm sort of lucky, the valves for by-passing the water heater and the valve for anti-freeze are all in the same compartment and close to each other.

If you don't have an obvious control for this (some rigs have a wet bay with all the controls), I would start by searching near your water pump. On my trailer, all of these valves look the same...
I am starting to think, that I will never be old enough--------to know better.
Tolerance will reach such a level that intelligent people will be banned from thinking so as not to offend the imbeciles. Fyodor Mikhailovich Dostoevsky, Russian Novelist
S.E. Mich. Flagstaff 26FKWS / 2022 F-150 3.5 EcoBoost SCrew Propride
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