hedgehopper
Denver
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The instructions that came with our rig use a lot of water. In scarce-water Colorado we do not want to use more than necessary. How do you do yours?
* This post was
edited 04/20/23 01:43pm by hedgehopper *
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2oldman
NM
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I don't.
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3 tons
NV.
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Never done it in 14 years - I can visually see up close both ends of the fresh tank and it is still spotless…BTW, cith water has chlorine in it and apparently this is enough to do the job…
3 tons
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Thermoguy
Graham, WA
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I follow the instructions - Bleach and a lot of water to rinse it out after the first fill and sit period.
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TechWriter
Part-Timing Again
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3 tons wrote:Never done it in 14 years - I can visually see up close both ends of the fresh tank and it is still spotless
My eyes aren't as good as yours. I can't see bacteria.
3 tons wrote:BTW, cith water has chlorine in it and apparently this is enough to do the job…
All campgrounds don't have chlorinated water supplies.
OP, I think most folks, including myself, sanitize our RV water tanks periodically. Once or twice a year for me.
I use either bleach or Purogene. Bleach is cheap, but caustic as hell. Purogene is pricey but easy on people.
For a typical 50ppm bleach sanitize, it's 1/4 cup bleach per 15 gal of holding tank capacity and let sit for 4 hours. For a stronger (100 ppm) concentration, it's 1/2 cup bleach per 15 gal and let it sit 1 hour.
Finally, you'll probably get some interesting rationale from folks who never sanitize their water tanks like . . .
- "I haven't gotten sick yet." (Also a popular excuse for smokers.)
- "I used to drink out of a water hose when I was a kid" (What this has to do with tank sanitation still escapes me.)
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ktmrfs
Portland, Oregon
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I use "spring fresh" santizer, easier than chlorine to get any residual smell/taste out. I do it every spring. The rest of the camping season I drain fresh tank after each trip, fill before the trip.
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JimK-NY
NY
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I would not want to argue with anyone who wants to use their camper without sanitizing the tank. But the OP asked for instructions on how to do the sanitizing using minimal amount of water.
The recommended procedure is to use 1/4 cup of household bleach for each 15 gallons of water. Pump the solution through the supply lines and faucets.
Some people bypass the hot water tank. I do not. There have been numerous studies showing that Legionella bacteria can thrive in RV hot water tanks. Fortunately most of us tolerate exposure fairly well. I had a friend who got really sick and was hospitalized with it for several weeks. I also do not scrimp and I completely fill the FW tank.
There are all sorts of conflicting instructions regarding the soak time. The original studies showed one hour was sufficient, but it seems that it is common to recommend longer soak times including even overnight.
Rinsing out the bleach solution will require a considerable amount of additional water. I completely drain the FW tank and pull the plug to also drain the HW tank. Typically I fill the tanks with fresh water and then drain again. You could probably get rid of the excess bleach by only filling the tanks about a third full and then drain again. Once you have the tanks flushed out the bleach in the supply lines can be quickly pumped out.
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rk911
DuPage County
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I did when we were newbees but quit after a year or two. haven't sanitized the water system for 30+ years. to each their own.
Rich
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MNtundraRet
Bloomington, MN
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I used the bleach method each spring. I carried separate drinking water. I used the water with bleach for toilet and doing the dishes. After refilling the tank water was okay to drink.
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Grit dog
Black Diamond, WA
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hedgehopper wrote:The instructions that came with our rig use a lot of water. In scarce-water Colorado we do not want to use more than necessary. How do you do yours?
Lol, what?
If 100 or 200 gallons pegs your environmental consciousness meter, I’d suggest trading for a Prius and a tent.
In the interest of actually sanitizing your tank, your tank you need to fill it full with water with whatever chemical you choose and then run it through the lines as well. And then it’ll take a tank or 2 to flush. Although residual chlorine dissipates over time so you can use less flushing if you don’t need to use the water tank for a period of time after sanitizing it.
You’re gonna use 2-3 tank full of water bout no matter how you slice it.
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