I had mine freeze but not as bad as yours. My tank was empty and I had opened the low point drains but did not pump any antifreeze through the system so I ended up with ice in low points and in the pump. Even after I got all the lines thawed and the temp in the RV up to 70 iI could not get any water through the system. The pump was running but there was just enough ice in it to stop water from being drawn in. I used a hair dryer to warm it up and let it set for an hour after that and it started working. The only lasting problem was that now my water pressure seems to bleed down in about a half hour which it never did before. I hope its just the one way valve and not a leak some place.
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