Sanitizing question: How long do you leave bleach solution in your fresh water tank?

Comments

• scott14 Member Posts: 176

  March 2

  The manual for our 2019 T@B 400 says to leave the solution for at least 3 hours. It also says 1/4 cup household bleach per 15 gallons of tank capacity.

  Scott / 2019 T@B 400 "C@lypso" / 2015 Chevrolet Tahoe LTZ / Northern Illinois
  

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• marleecamps Member Posts: 178

  March 2

  I leave mine overnight.

  --Marlee
  2021 Tab400 Boondock; TV 2025 Jeep Grand Cherokee Limited; Minnesota

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• pthomas745 Administrator, Moderator Posts: 4,477

  March 2

  I leave mine in for at least 8 hours.  In one case, I left it in for a couple of days.  The very weak bleach solution is not really an issue for anything, it seems to me.

  
  

  2017 Outback

  Towed by 2014 Touareg TDi
  

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• scott14 Member Posts: 176

  March 2

  @pthomas745 How many times do you have to flush the system in order to be free of the bleach odor?

  My experience has been it takes multiple flushes to clear out the odor. I may be doing something wrong.

  
  

  Scott / 2019 T@B 400 "C@lypso" / 2015 Chevrolet Tahoe LTZ / Northern Illinois
  

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• elbolillo Member Posts: 546

  March 3

  I usually leave it in overnight and then flush the system twice. A little residual bleach doesn't bother us as we don't drink water from the fresh water tank.

  _____________________________________________________
  Ken / 2023 Tab 400 “La Bolita” (31,000+ miles) / 2024 Toyota Sequoia
  

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• pthomas745 Administrator, Moderator Posts: 4,477

  March 3

  @scott14 Maybe once?  I might not have as big a sensitivity to the smell, but usually one tank run through to clear things out usually.  

  2017 Outback

  Towed by 2014 Touareg TDi
  

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• marleecamps Member Posts: 178

  March 3

  One flush does it for me as well.

  --Marlee
  2021 Tab400 Boondock; TV 2025 Jeep Grand Cherokee Limited; Minnesota

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• AnOldUR Member Posts: 1,685

  March 3

  Old homebrewer here. I drain and add five gallons of a Five Star Star San mixture. Run it through the system and give it five minutes before draining. It's a no rinse sanitizer, but I'll still do a single rinse with fresh water to be sure that the system is clean. Never any odor or taste.

  Stockton, New Jersey
  2020 nuCamp T@B 320S * Jeep Wrangler
  60,865 camping miles through the end of 2025

  
  

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• db_cooper Member Posts: 742

  March 3

  @AnOldUR
  That's a great suggestion.  I'm an old homebrewer as well, so have that on hand.  I also have spa chlorinating granules, so I've been using that for years.  With our small tanks it only takes a teaspoon to sanitize, and since we're on well water, I often put just a pinch in.  We don't drink the RV water, so a little chorine taste is no issue, but I'd still drink it if I needed to.
  
  

  2015 Max S Outback | 2010 Xterra  -- Retired
  2022 Ford F350 Tremor |  2022 Cirrus 620
  
  
  
  

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• Horigan Member Posts: 839

  March 3

  I've found a little vinegar (1/4 cup) in the first rinse helps eliminate the chlorine odor.  Seems odor free after the second rinse.

  Rich

  2019 T@b 400
  2025 Toyota Highlander 2.4L Turbo

  Bellingham WA

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