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Old 11-11-2022, 06:21 AM   #1
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Brand: Thor Motor Coach
Model: ACE 29.4
State: Wisconsin
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ACE 29.4 Winterizing

New owner of a 2017 ACE 29.4. We are planning on taking a trip (or two) before spring. I winterized by draining all tanks, water heater and low points. Set valves to by-passówhich is an adventure of its own, fresh tank drain and fresh supply are under a drawer in the bedroom, water heater valves are behind and under the kitchen sink, took my several weeks of research and searching to figure that out. Then blew out the water lines with compressed air. I was worried about the outside sink, so I poured about 2 cups of antifreeze into the sink and ran the pump (the outside sink has a macerator pump to empty it, that also took me weeks to figure out, I initially thought I had a plugged sink drain line before I found the pump switch Į\_(ツ)_/Į ). I poured a cup or so of antifreeze in all the p-traps, 1/2 gallon down the toilet and left enough antifreeze to cover the toilet bowl valve. Then I thought about the fresh water pump . . . Itís under the drawer in the bedroom and has an antifreeze inlet, but I didnít want to fill all the water lines with antifreeze. Instead of just sucking antifreeze from the jug and running it to the faucets, I put a tube on the antifreeze line with a funnel in it and ran a cup or so into the pump.
Think Iím ok?

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Old 11-11-2022, 06:34 AM   #2
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You live in Wisconsin? We live in Indiana and after blowing all the water lines out with compressed air I still use the pink stuff in the lines. Some will argue you don't need the antifreeze after blowing the lines out. Living in a climate that can get subzero temps in winter I will err on the side of caution and fill my MH's lines with anifreeze.
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Old 11-11-2022, 11:21 AM   #3
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Quote:
Originally Posted by ciret7 View Post
New owner of a 2017 ACE 29.4. We are planning on taking a trip (or two) before spring. I winterized by draining all tanks, water heater and low points. Set valves to by-passówhich is an adventure of its own, fresh tank drain and fresh supply are under a drawer in the bedroom, water heater valves are behind and under the kitchen sink, took my several weeks of research and searching to figure that out. Then blew out the water lines with compressed air. I was worried about the outside sink, so I poured about 2 cups of antifreeze into the sink and ran the pump (the outside sink has a macerator pump to empty it, that also took me weeks to figure out, I initially thought I had a plugged sink drain line before I found the pump switch Į\_(ツ)_/Į ). I poured a cup or so of antifreeze in all the p-traps, 1/2 gallon down the toilet and left enough antifreeze to cover the toilet bowl valve. Then I thought about the fresh water pump . . . Itís under the drawer in the bedroom and has an antifreeze inlet, but I didnít want to fill all the water lines with antifreeze. Instead of just sucking antifreeze from the jug and running it to the faucets, I put a tube on the antifreeze line with a funnel in it and ran a cup or so into the pump.
Think Iím ok?
I also unhook the shower hose and outside shower hose after blowing out.
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Old 11-12-2022, 04:26 AM   #4
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Thank you for the comments. I feel pretty confident we’ll be okay�� And have a quicker, simpler transition.
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Old 11-12-2022, 04:33 AM   #5
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Not sure if you have a refrigerator with water/ice maker or a washing machine in your rig, but those lines need to be handled also. Otherwise sounds like you knocked it out of the park.
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Old 11-12-2022, 04:38 AM   #6
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No ice maker or other water using appliance’s in the coach. But that reminds me to double check for food and other items that could freeze.
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Old 11-27-2022, 05:48 PM   #7
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Donít forget to pour r v antifreeze down the shower drain and toilet
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Old 12-08-2022, 11:03 PM   #8
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That's great advice wouldn't want those P traps to freeze up. Also don't forget the outdoor shower, split my hose because I didn't drain it completely a few years back. strarted just taking the hose completely off after that.
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