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Old 05-23-2015, 04:55 PM   #1
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Leaving water in fresh water tank

Hello all,
I'll be doing 3 day trips every other week for the summer. Should I be draining the fresh water tank after each trip or do you think it is OK to leave the unused water in the tank 2 weeks for the next trip? The reason I ask is I'm physically challenged on being able to get under the TT to open the drain. If needed I can get someone to do it.

Dale & Deb
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Old 05-23-2015, 05:13 PM   #2
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If you don't drink the water you can add some bleach to the tank when you fill it , I do this and leave water in the tank for months at a time . Flush system with fresh water and about 1/2 gal of white vinegar to rid the system of the bleach smell, and before trips where I might drink the water.
Water from a known good source ; i.e. ; city water that is treated with chlorine will stay good for a long time with nothing added, but well water should be treated.
Water will stay ok longer if tank is full , less air to react with anything that may be in the water.

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Old 05-23-2015, 05:18 PM   #3
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We never drain our tank until it's time to winterize. Just fill and go.
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Old 05-23-2015, 06:08 PM   #4
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I don't drain my tank except in winter. However I don't use the water in my tank for drinking.
Tony & Ruth........... FMCA#F416727
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Old 05-23-2015, 07:34 PM   #5
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I make a habit of adding chlorinated city water once a month. Otherwise the water stays in the tank from October to January. (Snow birds) Wife drinks bottled spring water but I use the tank for drinking without any bad effects.

Have a nice day - Darrel
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Old 05-24-2015, 03:38 PM   #6
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I sometimes leave water in the freshwater tank two or three months if we're not traveling much. I do have a high-quality filter under the sink though!
Joe & Annette

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Old 05-24-2015, 04:33 PM   #7
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We have well water at home and if we leave it in the tank for more that a week or two it will get a sulfur smell because it is pretty hard water, so I drain it after every trip.

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Old 05-24-2015, 07:15 PM   #8
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I keep the tank full at home. Full is better than empty. If I do not travel for a month or so I drain and refill before I go. I do sanitize in the spring and fall.

Yes, I do drink onboard water. Never had a problem doing that. I do run water through the garden hose till it is cold and then run that water through the in line hose filter for a bit before filling the tank.

I really do not understand how folks use water that has been sitting outside in a hose with the sun beating down on it on a hot day. I guess large grey holding tanks are the answer.
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Old 05-25-2015, 06:04 AM   #9
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I just put a Pur water filter on my faucet. Has anyone else done this? I use one at home on city water all the time to take out the chlorine taste. We drained, bleached and flushed our tank in Florida before we left but in case we would hook up to well water in a park, I thought this would be safer. Just like a home system, especially one on a well, I put the bleach in, ran the water on ALL faucets until I could smell bleach and then let it sit. This insures that all systems are disinfected. We used that method in real estate on houses with a well.
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Old 05-25-2015, 07:53 AM   #10
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Originally Posted by TMan59 View Post
We never drain our tank until it's time to winterize. Just fill and go.
George Schweikle Lexington, KY
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Old 05-25-2015, 08:12 AM   #11
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The only time you need to drain is over the winter. Just sanitize in the Spring. If you are using it at least once a month it will be fine.
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Old 05-25-2015, 08:18 AM   #12
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I fill with chlorinated city water, and never drain except to winterize.
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Old 05-25-2015, 12:18 PM   #13
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For the five years we owned the MH, we sanitized before each season. We filtered all CG water going into the FW tank and filtered our drinking/cooking water with the under sink filtering system. We always drank from the MH's tank w/ no problems.
Jan and Bob

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Old 05-25-2015, 01:06 PM   #14
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Originally Posted by Davdeb1 View Post
The only time you need to drain is over the winter. Just sanitize in the Spring. If you are using it at least once a month it will be fine.
Originally Posted by dieselclacker View Post
I fill with chlorinated city water, and never drain except to winterize.
I agree with these two, I leave it in there for weeks or more and I also drink it and it is fine. I do use a nice filter when I fill the tank.

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