Thread: Watertank in van not used for 6 years.

Bleach, or a good bleach is 96% water, 1.5% hydrogen peroxide and 3.5% chlorine.

Pool Liquid chlorine is about 13% active 87% water, but this degrades quickly depending on how it has been stored. Usually 1 month say 8% active.

Cal hypo (powder) is about 70%active

Di clor is about the same but only use unstabilized (indoor pools)

To sanitize a tank you need a solution at about 14% active chlorine, 3 hours. That at least will or should get rid of the hard shield nasty’s.

Followed by at least 2 flushes

NB chlorine is a gas with no odor color or taste, so it needs to be added or locked into some thing else, like salt or calcium etc.

NB if you smell chlorine ( its not) add more.

Ideally the PH of the solution should be about 7.2