sanitizing water tank - Page 2 - Fiberglass RV


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Old 06-21-2011, 06:23 PM   #15
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One lil mouse turd and even a good well can produce icky water! (sorry I have lived on many a well.) Just cause it is a well, doesn't mean it's pure! Granted most likely better than city water but not always pure. It's just our bodies are use to what our wells produce.

I am not big on carrying water in the tanks, try to keep the weight down. But Byron's way of sanitizing works well.
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Old 06-21-2011, 11:31 PM   #16
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Thanks, everyone. I was primarily thinking about mold and bacteria in the tank, rather than taste, so wanted to sanitize it, even for washing dishes. After we do the sanitizing, I'm not sure if we will feel comfortable using it for drinking water, we'll maybe taste it first! Thanks for your input. Hmm, I wonder if the Coleman insulated jug we have been carrying our drinking water in is BPA free. I guess if purchased last summer, it probably is....
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Old 06-22-2011, 12:22 PM   #17
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I think the packaging pretty much needs to say "BPA" free in order to be so.
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Old 06-22-2011, 09:28 PM   #18
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Peggy, you've gotten lots of opinions and good advice, but the decision is yours to make. After you flush and get the tanks and lines as clean as you think you can... take a smell test and SMALL taste test of fresh water from the system. Truly, that will be the determining factor if you want to put that water in your food or mouth. To each his/her own!
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Old 06-23-2011, 01:54 PM   #19
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This has been an intreasting topic and a few things mentioned that I did not realize about plastics. I dont drink the water from my tank even though I know its clean simple because I dont like the taste. I did notice while reading up on this topic that most of the experts seem to suggest that its not a good think to drink water from any plastics that have been warmed by the sun as they pretty well all off gas when warmed up regardless of age.
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Old 06-23-2011, 03:17 PM   #20
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This has been an intreasting topic and a few things mentioned that I did not realize about plastics. I dont drink the water from my tank even though I know its clean simple because I dont like the taste. I did notice while reading up on this topic that most of the experts seem to suggest that its not a good think to drink water from any plastics that have been warmed by the sun as they pretty well all off gas when warmed up regardless of age.

There in lays the problem. "EXPERTS" on this forum. HA HA HA

Oh! I almost forgot that along with that old or maybe new American aliment "paranoia".
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Old 06-23-2011, 05:32 PM   #21
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Actually Byron I wasnt thinking of this forum when I mentioned Experts but it was this forum that made me take the time to look around elsewhere for more info on the topic.

Heres just one of the many sites I found info on. Its a story about a study supported by the Harvard University Center for the Environment and the National Institute of Environmental Health Sciences Biological Analysis Core, Department of Environmental Health, HSPH:

BPA, Chemical Used To Make Plastics, Found To Leach From Polycarbonate Drinking Bottles Into Humans
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Old 06-23-2011, 10:44 PM   #22
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Deck Plate

After having my Casita for a year, I decided to install a deck plate on the top of the fresh water tank. Really, for no other reason than to be able to actually get in there and wipe up any water that may be left in there when I get ready to winterize so I'm not dilluting the pink stuff. Anyway, when I was able to cut the hole and take a look inside, I was amazed at some of the stuff that was in there.....and only after a year. Some brown stuff and some bits of the plastic left over from the tank install. Now I can inspect the whole inside of the tank from time to time for visual and sensual peace of mind. Even with this modification, it is still important to sanitize the whole water system, not just the tank.
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Old 06-24-2011, 12:18 AM   #23
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The manual for a previous RV I had said that you should fill it half way then add a cup of bleach and drive around to let it slosh around for no more then 4 hours then run 2 tanks of water through it to get rid of the bleachy smell/taste. I know the plastic water tanks they make for trailers today are made with special plastic that is not supposed to leech into the water, not sure about the one's from the 70's though. If it was really bugging you, you could replace it with an aluminium tank. The reality is that a lot of municipal water systems use traces of chlorine to further sanitize the water, so a little left in your tank probably won't hurt you. I also use an RV water filter when filling from gas stations and RV parks. Personally I enjoy the plastic taste cuz if I am tastin' plastic that means I am camping off-grid!

~Rodre
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Old 06-24-2011, 09:44 AM   #24
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I was amazed at some of the stuff that was in there.....and only after a year. Some brown stuff and some bits of the plastic left over from the tank install.
Scary, but so true! I was amazed at the gunk that was in my hot water heater tank after only a year. I am surprised that it can even run with all the deposits in there.




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= Rodre, The manual for a previous RV I had said that you should fill it half way then add a cup of bleach and drive around to let it slosh around for no more then 4 hours then run 2 tanks of water through it to get rid of the bleachy smell/taste.
Excellent way to clean the tank as well as the gray and black tanks.
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Old 06-26-2011, 10:03 AM   #25
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I had a new tank installed when I bought my trailer, and I can't get rid of the plastic taste, so I just use it for dishwashing, handwashing, etc. I put a small amount of bleach in it each time I go camping, (maybe 1/8 cup for 5 gallons) to keep it clean. Now I know why, its all the sloshing around going back and forth to campgrounds!!
For drinking water, I use 1/2 gal plastic milk jugs filled with water, freeze them for my coolers, and just thaw out what I need for drinking and cooking, one jug at a time.
As my camping time goes by and the food gets used up, I'm also using up the ice jugs. Works great! I'm able to get the empty milk jugs from my workplace, so I periodically recycle them and get new ones.
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Old 06-27-2011, 08:54 PM   #26
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I know the plastic water tanks they make for trailers today are made with special plastic that is not supposed to leech into the water, not sure about the one's from the 70's though.
~Rodre
the freshwater tank in our 35 year old Trillium appears to be made of polypropylene, a plastic commonly used for food applications.

I'm not saying this to further polarize this discussion, but most water systems look pretty gross after a bit of use, city water mains, indoor plumbing... water is the universal solvent and has a knack for picking up, dissolving, transporting and leaving behind deposits of ...stuff.
We shock our tank seasonally with some bleach solution, (to control any bio contamination). when we camp I like bringing my own water (and I am fussy about the source) more than what is available at most campsites.
like Donna said earlier:taste and smell are paramount, if you react negatively to either no amount of compelling arguments are going to convince your nose or tongue that everything is fine.
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Old 06-27-2011, 09:58 PM   #27
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the freshwater tank in our 35 year old Trillium appears to be made of polypropylene, a plastic commonly used for food applications.

I'm not saying this to further polarize this discussion, but most water systems look pretty gross after a bit of use, city water mains, indoor plumbing... water is the universal solvent and has a knack for picking up, dissolving, transporting and leaving behind deposits of ...stuff.
We shock our tank seasonally with some bleach solution, (to control any bio contamination). when we camp I like bringing my own water (and I am fussy about the source) more than what is available at most campsites.
like Donna said earlier:taste and smell are paramount, if you react negatively to either no amount of compelling arguments are going to convince your nose or tongue that everything is fine.
I can't quite bring enough water from home to last 3+ months. But, what I can do is bring along a ceramic/charcoal filter and filter all the water that goes into the water tank.

As for water and stuff in it some places like Portland Metro area claim great water without a lot of treatment. Their water comes from two large mountain reservoirs in area where people are prohibited and bears thrive. The water turns yellow in the fall due to the large amount of vine maple leaves in the water. The reservoirs are home to fish, crayfish, salamanders, snails, frogs, plus all sorts of insects. The surface is home to ducks, geese, and a loon or two. And still the water is some of the purest in the country.

As a kid I managed to get a city water supply tank that was on my grandfather's place. We just looked inside. There was slugs, snails and slim on the wall at the water line. Who knows what was deeper. Since then I've looked catch boxes at springs that fed individual homes, no better.

Many would stop drinking or using water if they ever really looked at the municipal storage systems.
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Old 06-28-2011, 05:10 AM   #28
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The scientific community tells us life began in water... and continues to thrive there. Proper filtering is smart and proper cleaning of the holding container necessary.
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