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Originally Posted by JABURKHOLDER
Read a lot of posts about winterizing. Don’t get why so many folks use sooooo much antifreeze. .....
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I suppose it has to do with how a unit is plumbed. Mine will almost suck a gallon jug before pink comes out the kitchen faucet when the cold valve is opened. Repeat with the hot and it takes more than the one jug. Don’t know how those pipes are run, but also takes a long time to get hot water to the kitchen when washing dishes so apparently not the most direct route.
Washer also takes a jug or more to see pink in the washer window for both hot and cold. And I make sure to get enough thru there to get mostly undiluted antifreeze in the P trap since it is otherwise not accessible. Add in the bathroom lavatory, inside shower, outside shower, toilet, black tank flush, and low point drains and P traps and, yes, it takes 4 gallons for mine. Yours apparently is much different.