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RV Has Had Grey Water In It For 2 Years And Smells Bad

by Doug
(Canada)

My RV has had grey water in it for 2 years and it smells real bad how do I get rid of the smell?

ANSWER: Greetings Doug thanks for submitting your question on our Ask An RV Question Page.

The smell is coming from the bacteria that have formed in your Grey Water Holding Tank for the last couple of years.

You need to dump the tank, but before you do I would suggest that you get some Chlorine Bleach and pour it down one of the drains leading to your Grey Water tank. The ratio should be 1/4 cup of bleach for each 15 gallons of water your grey water tank holds.

Once you add the Bleach I would also suggest you fill up your holding tank to almost full and if possible drive the RV around for about a half hour or 45 minutes so the bleach is agitated in the tank. Then let the RV sit for about 2 or 3 hours and dump the tank. You may have to repeat this process several times to get the tank clean.

Once the tank is clean you should start treating both your grey and black water holding tanks with Holding Tank Deoderant and make sure that you follow the manufacturer's instructions when using these treatments.

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To prevent this from happening again you need to make it a habit to always dump, flush and treat your holding tanks before you leave a campground.

I hope this helps.

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RVing Al

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