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Old 04-04-2021, 08:21 AM   #1
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Winterizing A 1999 Rexhall Aerbus

We recently purchased a 1999 ClassA Rexhall 33' Aebus. We've owned a number of RV's but never one with the "ball valve" water intake for filling onboard water or using city water. With this type set up I'm wondering how how RV antifreeze is sucked into the water lines? In addition it appears the drain plug on the water heater is very tight and am concerned about damaging the water heater if I "force" removal. So am wondering...will the water heater drain enough through blowing out lines to prevent freezing and fracture?
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Old 04-04-2021, 05:45 PM   #2
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In my MH, the antifreeze is sucked using the water tank pump and into the lines, having blown all the water first using a compressor first to blow all the water out. The compressor line connected with a suitable adaptor at the city water intake.

The water heater draining plug is likely screw type. Try getting it loose using a vice grip, but don't apply too much pressure on the plug.
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