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Old 10-26-2005, 07:45 PM   #1
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winterizing a 1974/no bypass

Need help, my Ambassador does not have a bypass on water heater. I can't figure out where the bypass can go, can't get good access to lines. Anybody have experience with this model? Otherwise I have to pump alot of pink stuff.

1974 Ambassador 29
2005 GMC Sierra 2500 Crew Cab SLT Duramax Diesel
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Old 10-26-2005, 08:12 PM   #2
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1960 24' Tradewind
Riverside , California
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Posts: 189
Copper tubing! In a tight spot. You could make a temporary bypass for the water heater, undo the copper tubing flare nuts, IF you have enough room attach a 90 1/2" mpt x 1/2" flare fitting to the flare nuts and a short 1/2" x 1/2" sink hook-up hose between, then the heater is out of the system. Compressed air does a good job of winterizing (watch the P.S.I.) blow-out plugs are cheap and if you do each appliance individually you can have enough force to push most of the water out....but nothing like a little antifreeze, don't forget the "p" traps and drain all the tanks.

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