Pure Water

[capnlmk]

My Ranger 25SC has a 40-gallon water tank — just like all standard R25SCs.

I’ve had some trouble with scum growing in the tank and clogging up the water system.

I was wondering how much Clorox I should put in the full tank to ensure the water stays pure.
I looked on the Washington State Department of Health website, the CDC website and the Clorox website for their recommendations. What I got was a somewhat confusing assortment of recipes for purifying water — including converting drops into teaspoons, etc. I also learned probably more than I want to know about commercial bleach products.

Here’s what I learned: bleach contains from 5.25% to 8.25% active chlorine (check the label — my regular Clorox lists 6%).
WA State Dept. of Health would recommend 8 teaspoons for 40 gallons.
CDC would recommend 5 teaspoons for 40 gallons of clear water and 10 teaspoons for cloudy water.
Clorox would recommend 5 teaspoons for 40 gallons, but I had to adjust their number of drops per teaspoon to what the CDC says (8 drops per tsp).

So, I’m thinking anywhere between 5 and 8 teaspoons of regular Clorox for the full 40-gallon tank should do the trick.
I’m posting this to see what experience others have had with keeping their tanks clear, particularly the “dose” of Clorox you used for a full 40-gallon tank.

 

[NorthernFocus]

For years we've lived in homes supplied with untreated well water and had the same issue. Rather than ongoing water treatment and to avoid the taste(and exposure) of chlorine, we did "shock" treatments to clean the tank. After letting it sit for 24 hours we drained it and flushed the tank much as you would to purge antifreeze during spring commissioning(i.e. until there is no odor/taste). Knowing we would be purging the tank I wasn't very scientific about the chlorine solution. Probably put half a cup or so into a 30 gal tank. At that concentration it worked like a charm 😀

 

[capnlmk]

Thanks. I’m also getting a lot of helpful comments on the Facebook Tugnuts site.