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Old 09-21-2021, 11:10 AM   #1
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A topic we all hate to think about--winterization!

Well, since tomorrow is the first official day of Fall, I thought it might be appropriate to ask a few more Stupid Questions from a New Guy!

Within the next month or so, the Midwest will likely see a few nights where the temps will fall below freezing. My basic little TH has zero cladding beneath so I need to make sure I get everything drained adequately. Fresh/grey/black water tanks are a no-brainer (I think). Pink RV anti-freeze poured in the sink/shower drains. Pull the anode rod from the water heater tank to ensure complete draining.

The fresh water plumbing seems like I should be able to simply open all the faucets and use compressed air to blow the lines dry from the hot/cold low-point drains. My assumption is that this will also ensure the water pump is dry.

Things that I don't know about: toilet flush plumbing and the pressurized (city water) supply plumbing. Any recos on the best way to ensure these systems are freeze-proofed? Anything else I'm missing?

Thx! I keep hoping if I ask enough stupid questions, I'll become smart enough to consider myself a true RV owner.
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Old 09-21-2021, 11:21 AM   #2
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This link describes fully: https://www.reserveamerica.com/outdo...rize-an-rv.htm


I would not depend on compressed air completely removing all traces of water from the plumbing system, but it's your property and wallet.
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Old 09-21-2021, 11:37 AM   #3
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Water pumps & toilet valves are typical problem issues with freezing temps
Outside showers get forgotten as do water lines to washer/fridge Ice maker

Blowing air thru system with low point drains open, faucets open etc can be used in areas where temps do not freeze

Freeze areas......best practice is to blow air and then pump anti-freeze thru system
*Bypass water heater/drain...no anti-freeze
Pumping anti-freeze get it into pump/into toilet and all plumbing lines
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Old 09-21-2021, 01:03 PM   #4
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We use compressed air first, including the blank tank flush. Then follow up with anti-freeze going through the pump. Pour 1/2 gallon down the p-traps, and let that sit in the grey/black tanks, to keep the valves from drying out.

Probably overkill, but itís very simple, and takes less than 30 minutes.
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Old 09-21-2021, 01:07 PM   #5
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X2 on pumping anti freeze thru system. Drain hot water tank. Turn valves to bypass. Disconnect city water. Empty all tanks. Pump anti freeze thru system. Make sure pink comes out all faucets. Don't forget toilet and outside shower. If equipped outside kitchen. Take your time double check. I pour some pink into toilet when all done yo keep gasket wet while stored for winter. If done right drains will already have pink in them. It only takes me 2 gallons to do my little camper. Make sure you turn off electric to water tank.
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Old 09-21-2021, 01:46 PM   #6
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What's winter?
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Old 09-21-2021, 02:16 PM   #7
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You will only use less than 2 gallons of the pink stuff. Why even bother with an air compressor.

I use the toilet flush until I see pink anti freeze. Same for the shower, sinks and sink sprayer.

Then I use what is left in the gallon jug, usually 1/2 gallon that I dump down the sink traps.
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Old 09-21-2021, 02:40 PM   #8
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Quote:
Originally Posted by Gammel View Post
What's winter?
It's a phenomenon that can create freezing weather after September in places outside of low altitude Southern California.
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Old 09-21-2021, 03:27 PM   #9
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I live in the high desert with plenty of freezing, and aside from my first winter we always use compressed air. The pink stuff only goes in the traps.

Hereís what I do after tanks have been dumped
1 open the water heater drain, allow it to drain and bypass it.
2 put the compressor on, and the open all faucets one at a time(including toilet and outside shower) until they are only blowing dry air.
3 open low point drains
4 close drains and remove compressor
5 pink stuff in all the traps
6 toilet seal conditioner

Never had a water system issue.
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Old 09-21-2021, 03:30 PM   #10
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I just drive to Yuma. Seems to work every year.
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Old 09-21-2021, 03:45 PM   #11
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I have followed the attached procedure for years and have not had a problem. A few comments on the previous replies..

Always blow out the lines first - one at a time. RV antifreeze is much more susceptible to dilution then auto antifreeze (i.e. a little dilution can significantly reduce the freezing point). Also note they have in all caps to not drain the water heater until finished the process. They don't state why but I believe it it so that if your bypass valves are leaking a bit any antifreeze that enters you hot water tank will be diluted and drained away when you pull the plug. Antifreeze can deteriorate the water tanks. Always remember to do your outside shower - I say this cause I never use mine, only winterize and de-winterize it. I usually use about 2 gallons and I don't pour extra in the p traps cause I flow enough antifreeze through the lines to fill the p traps.
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Old 09-21-2021, 04:56 PM   #12
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Quote:
Originally Posted by tuffr2 View Post
You will only use less than 2 gallons of the pink stuff. Why even bother with an air compressor.

I use the toilet flush until I see pink anti freeze. Same for the shower, sinks and sink sprayer.

Then I use what is left in the gallon jug, usually 1/2 gallon that I dump down the sink traps.
Agreed. Not worth the risk if you ask me. The pink stuff is cheap insurance. Just a little water pulling in the faucet connection, elbow, or valve is all it takes for a small crack.
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Old 09-21-2021, 06:14 PM   #13
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Best suggestions is.....Go south, young man, go south.

We are full time, but when I used to winterize if NE Oklahoma, all I used was air to blow out the system and low points. Getting an RV with a washer or a ice maker cleared for winter is a bit more of a problem. There I would recommend RV antifreeze.

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Old 09-21-2021, 06:27 PM   #14
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winterizing

Originally Posted by tuffr2 View Post
You will only use less than 2 gallons of the pink stuff. Why even bother with an air compressor.

I use the toilet flush until I see pink anti freeze. Same for the shower, sinks and sink sprayer.

Then I use what is left in the gallon jug, usually 1/2 gallon that I dump down the sink traps.
Agreed. Not worth the risk if you ask me. The pink stuff is cheap insurance. Just a little water pulling in the faucet connection, elbow, or valve is all it takes for a small crack.

Have used this system for three years in Massachusetts.....Never an issue....just time and a little elbow grease.....easy peasey: dance:
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