Winterizing with tankless air compressor
I currently have this air compressor: https://www.target.com/p/black-decker-153-black-38-decker-air-station-inflator/-/A-10541453?ref=tgt_adv_XS000000&AFID=google_pla_df&CPNG=PLA_Home+Improvement+S...
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For years I've been using a $50 12v compressor (no tank and can't remember what brand, use it to pump TV's tires up to 70 lbs) and have never had a freeze up. Hook it to the city inlet with the adaptor, turn it on and let it run. Wait a little till it builds up some pressure then go turn on faucets one at a time, waiting a little between each opening. Keep at it till they just spit a little. Run the pump for a while too. Takes about 15-20 minutes. Then Pink stuff down the p-traps.
