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Water-Cooler Question Answered

I have a water cooler that had stale water in it. I have drained it ran Hot water through it and soap but it didn't seem to work what else can I run through it to stop it from tasting like nasty.?


You might try running white vinigar through it followed by a mild bleach solution. Then a final rinse with clean water.

Ok thanks allot guys. When you say mild bleach is that like 1/2 cup bleach to 3 cups water?

Look at the label of the bleach container. It will almost certainly describe the appropriate concentrations for sanitizing, since the manufacturers know this is one of the things people use it for.

Go to "mrbeer.com" and purchase some of their sterilizing power. It's safe to use on utinsels and containers and does exactly what you want.

It;s used to sterilize bottles and other containers before making beer.

diyoutdoorsman has the right answer.

There's even a water-cooler-disinfectant kit you can buy from various hardware stores - basically just these ingredients;

mechanical cleaner (soap/detergent)

The scale houses the bacteria and many cleaners can't access them
The bleach disinfectant kills the nasties
the detergent removes their little graveyard
and I bet you can guess what the rinse is.

*do not allow bleach and vinegar to mix.


7 years ago

Like diyoutdoorsman mentioned, a bleach solution will sterilize it. Just make sure you rinse all the bleach out of it afterward. Also don't spill it on your cloths, you won't like the results of that. It might have a little bleach smell for a short time but that is harmless.

Sodium met6abisulphide It's used to clean and sterilise baby bottles.