Hydrogen Peroxide - I need to "disinfect" the water in the in-hull water tank on our sailboat. We do not drink the water but do use it to wash our dishes and clean galley surfaces. Instead of using chlorine bleach (currently using ~1/3 C/30 gallon tank), I wondered if I could use H2O2 instead. I have read that it breaks down readily in water, so perhaps it is not a stable long-term choice. But if it is a plausible choice, what strength H2O2 should I use, and how much should I use per 30 gallons? Thank you in advance for your advice!
I would stick with the bleach, but 1 ounce is more than enough for a 30 gal tank. We have a cistern that we use for all of our water supply and we use a half ounce per 1000 gallons or 5 ounces if we fill the tank 10,000 gal. On a on going basis I put in a half ounce about every 2 to 3 weeks. Depending on how much rain we get, as we take our runoff rain from the roof of our house (we live in southeast Alaska) lots of rain. And even at a half ounce you are going to get a smell of bleach in the water.
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