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Old 04-07-2021, 11:27 AM   #1
mccannsg57
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Exclamation Sanitizing my water system

I’m getting ready to bleach my water system and have one question about this.
I have city water that already puts a bacteria killer in would just filling up my fresh water tank and running 2 tanks through it kill what may be in the system?
Or should I add a little less bleach? I have a Premier 24RKPR travel trailer
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Old 04-07-2021, 11:59 AM   #2
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For the sake of safety, assume the worst. Your tank and the lines that supply your faucets have crud growing in them. Add the bleach, remove your faucet strainers, flush the lines thoroughly, flush the tank and the lines with fresh clean city water and then you know you're safe using tank water. Won't hurt anything and it may prevent an issue.
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Old 04-07-2021, 12:06 PM   #3
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Thanks, I was planning on bleaching but just wondered about the city water. I looked a little online but couldn’t find anything about that. Just trying to outsmart myself into trouble.
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Old 04-07-2021, 12:07 PM   #4
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fill your tank with a solution of 1/4 cup bleach per 15 gals of water. Run it thru all the lines. Refill with clear city water.
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Old 04-07-2021, 12:12 PM   #5
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Quote:
Originally Posted by mccannsg57 View Post
just wondered about the city water.

The level of chemicals in your tap water is designed to protect or purify the tap water. Whether the concentration would be high enough to disinfect a potentially contaminated RV is unknown.
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Old 04-07-2021, 12:19 PM   #6
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I think along your line of ” for safety sake, assume the worst”. I guess also city water is consistently flowing not just sitting in a plastic reservoir.
Thanks
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Old 04-07-2021, 12:28 PM   #7
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Considering your camper is new, I don't think there is too much concern about "things" growing in the water tank or the plumbing. If it were a 10 year old camper, left empty and overgrown with weeds and infested by rats,.... yea ... you'd need to sanitize. But a NEW camper?

Here's what I suggest.... this is providing you have not used water in your camper already: Do a first time sanitization and then don't worry about it every again, as long as you are using, or are connected to your treated city water at home.

The very first time you add water to a new camper, you should flush it out. This cleans out any factory particles that may be in the lines. Also, after flushing things out the first time, you'll probably need to remove the aerators on the end of your kitchen faucet and bathroom faucet and clean them out, because they most likely will be clogged up with construction particles from the factory. I know water lines are suppose to be clean, but they clean only when you've flushed them first.

Now, if you have already filled your tank and ran water through your lines and flushed things out, there no need to do it again.

We lived "in town" for over 16 years and all the time we lived there, I sanatized my campers only once. And that was the day I brought them home from the dealer brand new. The chemical content in the city water was more than enough to sanitize and keep the lines healthy.

If your tank had been sitting around for a few years, partially full, or even empty, that would be a different situation. But with a NEW camper, no, flushing with city treated water will do the trick.

We now live in the country. Been out here for quite a while now. We are on a well, and we are going on 2 1/2 years with our current Montana fifth wheel, and I've sanitized only once. Again, that was the day I brought it home from the dealer. We keep water in it all the time, Summer and Winter, and we have a whole house filtration system (no chlorine though). And after 3 trailers, we've never had problems with any kind of contaminated water systems in any of our trailers.

Bottom line is: If you are city treated water, you are probably perfectly good to go.

On Edit: How do I know you have a new camper? I read your other post!
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Old 04-07-2021, 02:53 PM   #8
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Thanks for all the help
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Old 04-07-2021, 04:45 PM   #9
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If you do sanitize, everything I've read says to let the system sit for 24 hours before flushing the bleach solution out.
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Old Today, 12:00 PM   #10
Twisties
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On chlorinated systems city water would be treated with higher levels to disinfect. Then levels are reduced to maintain when the water enters the distribution system. If there is a line break municipal systems should treat the downstream area with higher, disinfectant levels and flush before lifting any boil orders or stop use orders. As well, many water systems use other methods, such as filtration, ozone or uv light or other oxidants. But the point remains the same: lower maintenance levels in the distribution system.

Point being, no the levels of disinfectant present in the water from your tap are not effective in sanitizing your RV.

In my owner's manual Keystone specifies 1/4 c bleach per gallon water, then one gallon of that solution for every 15 gallons of fresh water tank capacity. Then fill the fresh tank with water.

So, in my case, 60 g fresh tank..... 4 gallons bleach solution (one cup of bleach total) and fill tank. Run it through lines until you smell it. Let stand 4 hours (per Keystone). Completely drain system, fill and flush until clear of bleach.

My question is, are you supposed to fill the hot water heater with the sanitizing solution?

We are de-winterizing for the first time, and the instructions imply not to. The sanitizing instructions don't mention it, but in the de-winterizing instructions it has you open the hot water bypass when ready to use hot water, after the sanitize step. Not super clear.
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Old Today, 12:26 PM   #11
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Quote:
Originally Posted by Twisties View Post

My question is, are you supposed to fill the hot water heater with the sanitizing solution?

We are de-winterizing for the first time, and the instructions imply not to. The sanitizing instructions don't mention it, but in the de-winterizing instructions it has you open the hot water bypass when ready to use hot water, after the sanitize step. Not super clear.
No, I would not open the HW heater bypass valve until after you have sanitized and flushed the system. Similarly to how you don't want the antifreeze in the HW heater over winter, you also don't want the bleach solution in your HW heater either.
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Old Today, 12:27 PM   #12
mccannsg57
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I sanitized my system last weekend. 1/4 cup per 15 gallons plus I included my hot water heater in the equation. I drained and flushed the antifreeze making sure no antifreeze was in the lines. Then open up the bypass and filled the heater with the sanitizing solution. I did not turn the water heater on, I just filled it. I also read in the keystone manual 4 hrs but I let the solution sit overnight. I put some solution in the grey water and black water tanks. I also drove it around for a couple of hrs on different roads to let it slosh around. When I drained the sanitizing solution I just opened the drain on the bottom. I would fill the hot water heater from the city connection then open the back drain valve. I flushed both hot water heater and fresh water tank 3 times.
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