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Old 07-27-2015, 03:19 PM   #1
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Fresh water tank has sewer odor

We just returned from a 30 day trip in the Windjammer and when we went up to check it in storage last night found the fresh water has a definite sewer odor and taste. Currently the fresh water tank is about 2/3 full and we are going to drain and sanitize the system per the owner's manual in the next day or two to clear it out.

My question is: has anyone had this happen before? Perhaps we filled the tank with some less-than-perfect potable water while out on the road and two weeks of sitting in the Texas heat has helped it "bloom" into something special? Is there a way that the gray/black water tanks could cross-contaminate the fresh water holding tank?
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Old 07-27-2015, 03:23 PM   #2
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Could the smell be more of a sulfur smell? Bacteria in the water heater can cause a rotten egg smell.
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Old 07-28-2015, 12:36 PM   #3
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Odor in fresh water tank

We drained the fresh water tank last night at the storage lot. I used the water pump to pump out the lines as best we could. As we are at home base now we are filling up the tank again on Friday and adding 3 each 1/4 cups of bleach to the tank per FR owner's manual; then we are heading to a camp ground for the weekend and will dump the tank that afternoon and refill with fresh water again to see what happens. I pulled the drain on the hot water heater so dump that water also, thanks for the idea karrun.
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Old 07-28-2015, 01:47 PM   #4
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Good luck. I've never heard of the black water backing up into the potable water,so hourly you are good.
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Old 07-28-2015, 01:57 PM   #5
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It is very possible that somewhere the water you used to fill the water tank had some sulfur or nitrates ( not unusual especially if well water). The bacteria and heat can convert nitrates into SO2 . Tank sterilization should fix it .
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Old 07-28-2015, 02:30 PM   #6
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We had been camping using city water connections and not using the fresh storage tank, until we pulled into a KOA in Wa Keeney, KS. We decided to fill the tank for the next leg of the trip and then didn't use any of it. I also think the water perhaps wasn't as chlorinated, or did have some sulfur as suggested, and now that it has sat in the tank for 3 weeks in 100 degree Texas weather, it has created some issues. I think we will make it a habit to drain and flush the tanks of "foreign" water after each trip. We had not had a problem using local water in the tanks in the past.
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Old 07-28-2015, 02:54 PM   #7
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I have a standard culligan whole house filter set up with GHT threads on each end and loaded with a taste odor sediment filter. Any water going into the TT whether in the potable tank or city water connection goes through it. I use it even when I have to refill my "jerry" cans for the inevitable extra water needed on a long weekend
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Old 07-28-2015, 03:01 PM   #8
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Pre-filter

Jeff64, that sounds like a good idea. I have an in-line filter in the trailer but not one to use when I fill the fresh water tanks. The trailer filter is pretty much just for the chunky stuff and doesn't seem to help with taste. Thanks for the idea.
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Old 07-28-2015, 03:08 PM   #9
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We had this happen once in our Windjammer as well. I had left some fresh water in the tank and it sat between trips in extreme heat. I don't remember the product but when we realized our issue on our next camping trip we ran to a local trailer dealer. He sold us some additive that cleared it right up. I now drain all fresh water at the end of each trip and pull the drain on the hot water tank once home after each trip.

Having a lot of relatives in the Hays to Wakeeney Kansas area--not the best water sources out there with all the limestone and minerals in the ground. Probably didn't help your cause any.
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Old 07-28-2015, 03:23 PM   #10
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The key is to drain after every trip. leaving water in Hot Texas climate will do the water in a heart beat. Same goes for the hot water heater drain them or you are just asking for more Oder issues. I have never had an issue by following these rules. Later RJD
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