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Old 04-22-2016, 12:32 PM   #11
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Would think if the water in the heater reaches 120-140 degrees, it will sanitize itself.
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Old 04-22-2016, 12:36 PM   #12
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When I camp (outdoors) on the trail I boil water to sanitize. What is the temp for pasturization? 180 maybe? Not sure. Just like nasties can grow in a contaminated fresh tank and pipes they can grow in the dark moist environment of the heater.

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Old 04-22-2016, 01:51 PM   #13
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I do the water heater to. I look at it as I'm doing the rest of it what's it going to hurt plus the lousy well water we have at the campground gets rid of the smell.
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Old 04-22-2016, 06:28 PM   #14
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Originally Posted by BobHanke View Post
Would think if the water in the heater reaches 120-140 degrees, it will sanitize itself.
Not necessarily. Above 140 degrees, things should be OK. But under 120 degrees, a water heater is a breeding ground for bacteria, especially Legeionellosis (Legionnaire's Disease). In the 120 degree range, Legeionellosos can't breed, but can survive. And what happens between camping trips ?? The water heater cools off, creating a perfect breeding ground for bacteria.

Check out: Is it Safe To Turn Down Your Water Heater Temperature? : TreeHugger

Thankfully, I think most RV water heaters are set high, so that once you mix with cold water you have plenty of hot to last a shower or 2. But I also understand that some RVs now come with lower temperature thermostats.

I keep my home water heater in the 120 degree range, but I also have a municipal water supply, and hopefully the chlorine will take care of those little buggers.
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Old 04-22-2016, 07:03 PM   #15
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Killing nasties

I sanitize the hot water tank as well.
Just make sure to drain and briefly flush the water heater when you flush the bleach water out. I forgot to drain and flush the water heater this year and my first shower left me smelling like I had been in a swimming pool.
Fixed that the next morning before breakfast.
As far as sanitizing the water heater by using it, I'll pass.
The water temperature does not get hot enough to kill critters.

On board my first Navy ship, where I learned to produce fresh water from sea water, fresh water safety was very, very, big.
Seawater feed temperature into a 2 stage 12,000 gallon per day flash type distilling unit is between 165F and 175F. That temperature combined with the low first stage pressure of about 23in Hg ensures the critters are killed.
Then we had in-line bromine injection to make darn sure they were toast. Just had to make sure we did not over brominate, very nasty taste when you brushed your teeth.
In the galley the Navy dishwasher rinse temperature is between 180F and 195F to kill nasties.

Getting Montezuma's Revenge at home or on vacation is bad.
I shudder to imagine the crew of a destroyer or carrier fighting that malady since I never had to deal with that.

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Old 04-24-2016, 08:50 AM   #16
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I sanitize the water heater too, fill it up first then top off the fresh tank again and sanitize the rest of it. When you drain and flush after a day or 2, drain the water heart then fill the system up with water again and flush out the lines. I also use one of the fresh water conditioning products, I like the non-bleach products, all the time to keep the system fresh through the season.



Please explain what it is that you use as a fresh water system conditioning product and what you use as a to keep the system fresh
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Old 04-24-2016, 09:29 AM   #17
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Bleach mixture in F/W tank,turn on pump,have system in Summer use position,Except! have the W/H Output Closed and the Drain plug installed! Now Open the Pop off Valve on W/H until it fills,then close PO valve and Close the Incoming waterline to W/H! Now you are back to Winterize/Bypass position!Now open ALL outlets "1 at a Time" until you smell Bleach,then close. O/S shower,also,NOW,turn off pump and open a outlet to Dump all pressure,now push IN the City water inlet check valve until bleach water comes out,now remove the Low point drain caps and let run untill bleach water comes out Both of these as well,the pump Might have to be ON while performing this step! Turn on pump and open all outlets agin and let sit over night! Drain and flush system Completly with Fresh water and your Ready to go! Lot of Work but the "Whole System" is covered! Youroo!!
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Old 04-24-2016, 04:24 PM   #18
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Sanitize in bypass or not?

Quote:
Originally Posted by youroo View Post
Bleach mixture in F/W tank,turn on pump,have system in Summer use position,Except! have the W/H Output Closed and the Drain plug installed! Now Open the Pop off Valve on W/H until it fills,then close PO valve and Close the Incoming waterline to W/H! Now you are back to Winterize/Bypass position!Now open ALL outlets "1 at a Time" until you smell Bleach,then close. O/S shower,also,NOW,turn off pump and open a outlet to Dump all pressure,now push IN the City water inlet check valve until bleach water comes out,now remove the Low point drain caps and let run untill bleach water comes out Both of these as well,the pump Might have to be ON while performing this step! Turn on pump and open all outlets agin and let sit over night! Drain and flush system Completly with Fresh water and your Ready to go! Lot of Work but the "Whole System" is covered! Youroo!!

It's a bit hard to tell, but does that process not fill the HW tank with bleach water, and it doesn't get drained? Unless you run the city water through the hot water faucets long enough to flush 6 gals. through the heater.




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Old 04-24-2016, 09:21 PM   #19
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It's a bit hard to tell, but does that process not fill the HW tank with bleach water, and it doesn't get drained? Unless you run the city water through the hot water faucets long enough to flush 6 gals. through the heater.




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Drain whole system covers the W/H tank also! Yes bleach water is in the W/H tank over night also! Youroo!!
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Old 04-24-2016, 09:25 PM   #20
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Hot water heater

Yes, you can put the bleach solution in the water heater.
Just be sure to drain and flush the bleach water out, pull your anode rod, but open a water tap or lift the heater relief valve to release water pressure from the system first so you don't get soaked.

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