Friend sent me this,great idea!
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Had not heard of this stuff. I did use pipe insulation on mine. Long as you have cold water that is something. Vacuum with hose on the reverse does get to some places. Thaw slow and easy to not have problems you can stick the hose from vacuum in places where you can not reach other wise. Heat lamp where room I used of the neighbors one time. Vacuum does put out warm air. I have had canister type vacuums.