Thanks for the idea, going to make one myself. I had something rigged up last year but can't find it now.
Here we use the 5er year round but when I know it's going to get real cold I blow out all the lines. Putting RV antifreeze in here is a waste of money so the air is our best option. Thanks again for the idea.
2014 Palomino Columbus 3650TH
435AH 12V VMax Charge Tanks, 520 watt Monocrystilline Solar Array, Morningstar MPPT TS-60 CC,Morningstar Remote,Cotek True Sine Wave Inverter,Cotek Remote Controller,50amp Progressive Hardwire Surge Protector
2015 Dodge 3500 6.7L 4X4
2011 CanAm Commander XT 1000