I have a surflow water pump 40psi.I went to winterize it.I drained all the water from the water heater and bypassed it.I than drained the fresh water tank using the water pump and letting the water pu...
I do my Passport exactly the same as you. I remove the inlet hose from the tank and install a short hose going to the antifreeze jug. I turn the pump on and have to open a tap. Once the tap is opened it primes. I would think if you fill the line with antifreeze it would prime easier.
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