Trying different method of fresh water tank sanitization

I'm a former Water Technician (owned a pool and spa store). While this hot-water and vinegar *might* work (bacteria can flourish in a 104-degree hot tub without an oxidizer like Chlorine/Bromine/Ozone) - adding some bleach is just such a simple, non-caustic way to keep your water clean.... and it does its work quickly.

I just want to add that you should use "fresh" bleach - it can lose its ability to sanitize if it has been sitting around for months, especially if it's in a warm storage area.