Water tank? - Fiberglass RV


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Old 07-24-2012, 12:15 PM   #1
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Water tank?

Good afternoon fellow fiberglass campers,

I have a very good question. I have never owned a camping unit with a water tank. I'm not sure when the last time it was used. So....how do I clean this tank with chemical's?
It is a 76' Trillium, and it has not gone on an adventure for years...

Thank you everyone.....Donny
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Old 07-24-2012, 12:51 PM   #2
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Here is one way: How Fresh Is Your RV Fresh Water System? - RV Information (RV Maintenance)

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Old 07-24-2012, 03:18 PM   #3
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I just purchased a tank cleaning and sanitizing set of chemicals from Camping World. I haven't tried it yet, but it looks pretty easy to use and should clean out and sanitize your tank ready for use.
Even if it had been used I would do the cleaning and sanitizing before use. That's was even recommended for a new tank.

By the way, Clorox and other household bleaches no long have Chlorine in them, which many of the older recommendations say to use. I have no idea how effective the non-chlorine bleach is. That's why I bought something made for cleaning and sanitizing a water tank.

I also recommend cleaning and sanitizing once a year, and using a high quality ceramic filter to filter water going in. I use a 3 micron filter with an activated charcoal core.
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Old 07-24-2012, 03:36 PM   #4
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Originally Posted by Byron Kinnaman View Post
By the way, Clorox and other household bleaches no long have Chlorine in them, which many of the older recommendations say to use.
Huh?
Been sodium hypochlorite as long as I remember.
Sodium hypochlorite - Wikipedia, the free encyclopedia
Clorox - Wikipedia, the free encyclopedia
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Old 07-24-2012, 05:12 PM   #5
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I guess you're just a few years old then.

Remember Purex? It's no longer manufactured. They stopped when they were forced to stop using chlorine.
Your link to Wikipedia does state that sodium hypochlorite is used as a disinfectant. However, I had zero luck with trying to shock my well a couple years ago with it. A few years earlier the chlorine version worked fine. I believe the amount of chlorine was 1.6% in chlorine bleach when you could get it.

I believe part of the change was to prevent the bleach from altering the color of fabric. In the older stuff anytime you got it on a dyed fabric it removed the dye.

Again, since the only reference to sodium hopochlorite us a disinfectant is Wikipedia I'm still a bit skeptical. Wikipedia is known for inaccuracies.
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Old 07-24-2012, 07:02 PM   #6
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google this:

infection control sodium hypochlorite

You will find all the academic references you need. About 189,000 results (0.40 seconds). I'll let you know when they tell me it is no longer an effective disinfectant in health care. Shocking a well and disinfecting a surface are two different beasts.
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Old 07-24-2012, 07:13 PM   #7
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Health Canada guidlines for disinfecting a well with bleach:
What's In Your Well? - A Guide to Well Water Treatment and Maintenance
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Old 07-24-2012, 07:29 PM   #8
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NEWS FLASH..... Clorox MSDS
http://www.thecloroxcompany.com/down...leach0809_.pdf
Common Household Clorox still is a sodium hypochlorite containing product. That, a lot of water and a few minor ingrediants are still all that's there.

Some of the color bleaches and pretty smelling versions may not have the good stuff but, at least according to the mfg., basic Clorox still does.

That said:
I never use my supply tank for cooking or drinking water, just for washing, showers, the loo etc. For drinking & cooking I use refillable 1 gallon plastic bottles that start every trip as ice bergs in the refrigerator.

Why? Because a holding tank can be a perfect incubator for anything that just happens to sneak in from the hose or bucket you use for filling your tank.

There are some fancy water tank disinfecting liquids, tablets and powders, but as far as I have seen, they ae all basically sodium hypochlorite in one form or another.

Once a year I empty the supply tank, put in 2 cups of the cheapest bleach I can find and add 10 gallons of water. I run it through both the hot and cold system for a day or so, tow it around a bit to get the splash factor going and then drain it out. I follow with two good rinses of the entire system and call it good. Except for the extra finger growing out of my left hand, everything is just fine.

BTW: If you want real power, swimming pool bleach is plain double strength sodium hypochlorite
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Old 07-24-2012, 08:23 PM   #9
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Quote:
Originally Posted by Byron Kinnaman View Post
I guess you're just a few years old then.

Remember Purex? It's no longer manufactured. They stopped when they were forced to stop using chlorine.
Your link to Wikipedia does state that sodium hypochlorite is used as a disinfectant. However, I had zero luck with trying to shock my well a couple years ago with it. A few years earlier the chlorine version worked fine. I believe the amount of chlorine was 1.6% in chlorine bleach when you could get it.

I believe part of the change was to prevent the bleach from altering the color of fabric. In the older stuff anytime you got it on a dyed fabric it removed the dye.

Again, since the only reference to sodium hopochlorite us a disinfectant is Wikipedia I'm still a bit skeptical. Wikipedia is known for inaccuracies.
Actually liquid bleach never really had chlorine in it as pure chlorine, it has always been the hypochlorite ion (HOCl-) whether it came from sodium hypochlorite or calcium hypochlorite ( also known as HTH "hi test hypochlorite" or from the solution of chlorine gas in water which forms the hypochlorite ion. The hypochlorite ion is what does the "killing"
Typically it it comes from the manufacturer as 12.5% Sodium Hypochlorite by weight which means that 1 gallon of this liquid sodium Hypochlorite is equivalent to 1 pound of chlorine gas. This liquid is just diluted and some other chemicals such as fragrance or other things added to the bottle and sold as bleach.
I just looked at the wife's store of bleach and Wally World bleach has a little over 6% by weight sodium hypochlorite while the ValU brand had only 3% which may account for the weakness (she probably thought she was saving $ with the ValU). You have to read the labels.
Also keep in mind that the Hypochlorite solution is not very stable and rapidly decomposes in the bottle. We figure the 12.5% stuff degrades about 1% per month which may be another reason it didn't work too well.
When I bring a new water tower or water plant on line I always start with about 50ppm equivalent chlorine to disinfect the tankage lines and facilities and have only had to redo tehe treatment 1 time in 30 years.
My 2 cents.
Michael J
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Old 07-24-2012, 08:56 PM   #10
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Building on what Bib said ... I just bought a 1980 Scamp. All water lines (both from tank to sink. As well as the citi water feed) faucets, lines et al . I AM replacing. Never can be too sure when it comes to my health.

I you do use your originals, don't just clean them by flushing bleach (or whatever you decide to use) but disassemble soak and clean then reassemble. Cootiea love to hide in all kinds of nooks and crannies!!
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Old 07-24-2012, 09:36 PM   #11
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Having a pool in my yard, I am accustomed to the concept of "chlorine" - which is available in the form of powders and 'pucks" as well a liquids at your nearest pool or spa supply store. Wally World carries it, Canadian Tire, Costco etc all have it in season. Powdered bags of "shock" are a good source of powdered disinfectant.

If your pool has managed to "run away" due to lack of disinfectant (symptom is very dark green water), liquid chlorine is added and voila! Clear, sterile safe water again! (and then ya gotta vacuum the layer of dead algae off teh bottom!)

Getting stuff to disinfect your tank isn't difficult - just "think outside the box"
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Old 07-24-2012, 09:40 PM   #12
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Rather than use a bunch of chemicals of which you're not sure will affect the taste... how about installing a couple of deck plates that allow you to visually inspect the inside of the tank, hand scrub it out and thoroughly dry it when put into storage.

Just another idea: Deck Plate Install Sebastian installed the deck plates so he could use the tank for other things... but this will give you an idea.

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Old 07-24-2012, 09:58 PM   #13
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I made chlorine for thirty years before retiring the hypo does have chlorine in it, called a process byproduct commonly used as bleach.

Heat is what causes the chlorine to be released.
Bleach will take care of all those nasty bugs in the water.

Me I never use my water tank for drinking water.

BC Dave liquid chlorine vaporizes to a gas above freezing the more heat the more gas. Manufactured its temperature is - 30 C recreation centers only add gas never as a liquid.
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Old 07-24-2012, 10:40 PM   #14
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water tank?

Thank you to every one again! I used to have a hot tub, and used the "shock" stuff all the time. My water tank will not be used for drinking water, I really can't trust it. I will keep it clean, and I'm going to install a water filter for the "sink" line, so I can use it for dishes. I will flush it with Javex first, then double rinse.

Again, thank you to everyone who tries to help out.

Donny
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