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Old 11-24-2018, 11:13 PM   #1
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How do I winterize???

I have a 2005 Cardinal 5th wheel. What are the proper steps to winterize its water system? On my older Prowler, I had drain plugs at a low point to where I could drain all the water from my complete system.
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Old 11-25-2018, 12:04 AM   #2
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I should think you still have low point drains somewhere underneath. If you have access to an air compressor, you can buy an adapter that threads into your water inlet to plug air in. Use around 30psi and work your way through opening all your faucets, toilets, and spray ports one at a time. Make sure to do both cold and hot sides. Keep each item open until nothing but air comes out. Using this method I haven't needed antifreeze in the water lines and I'm in western PA, so it gets cold. If you decide to antifreeze, remember to bypass the water heater before doing so. Now assuming your black and grey tanks are empty, add a small amount of antifreeze to all sink and shower drains and the toilet. You only need enough to push water out of your traps and to cover the hatch on the toilet. We use about a half gallon for 3 sinks 2 toilets and 2 showers.
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Old 11-25-2018, 02:36 AM   #3
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There are tons of winterizing videos on the Internet and YouTube.
And your trailer should have low point drains.
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Old 11-25-2018, 03:30 AM   #4
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Quote:
Originally Posted by bikendan View Post
There are tons of winterizing videos on the Internet and YouTube.
Yep, what he said. Oh and make certain you use the correct (pink) antifreeze and bypass the water heater.
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Old 11-25-2018, 06:59 AM   #5
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The cost of a cpl of gals to use in your drains or water system is cheap compare to any repair from water freezing so don't be afraid to use a lot
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Old 11-25-2018, 01:41 PM   #6
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If you PM me your email address I will send you my spreadsheet I use to winterize my Flagstaff TT.
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Old 11-25-2018, 03:51 PM   #7
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I always just blew out my water as discussed above, then I had problems on the first camp out with a frozen shower faucet. No water for the weekend, now I drain at the low point drain, blow out, then add antifreeze. Walmart has 2-1/2 gl of antifreeze for $4.97 (less than $2.00 gl), cheap insurance.
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Old 11-25-2018, 09:23 PM   #8
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I have a 2015 Surveyor hooked up (full set-up) in my back yard. It is used off & on all winter with family coming to visit for days at a time. I am temporarily hooked up to a home size 250 gal LP tank so gas supply is not a problem.

During non-use times I cut off and drain the hose to the city water hook-up and leave the thermostat set at 50 deg. Hot water heater off to save gas till needed. The closed underside keeps pipes & tanks from freezing. (Alabama very rarely gets down to the single digits - thankfully). Easy to get up and running for a guest visit.

Been good for 3 years now and getting ready for this winter now.
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