Sodium Hypochlorite is a known carcinogen, H2O2 isn't . In fact, many water treatment plants use it as a microbial killer. I buy mine in 15 gallon carboys as a rule and inject it into the raw water via a perastaltic (positive displacement pump) that meters a specific amount into the raw well water. I've had my water tested by the county numerous times and it always comes back negative for any micro organisms. Important to me as we have an amount of red iron in the water and red iron is noted for growing microbes. Been doing that for at least 10 years now and the system is basically turn key. A nice side effect is, the H2o2 precipitates out the iron so the water is clear and nice with no afrertaste at all. I use a Pulsa Feeder injection unit btw. The tank holds 5 gallons of solution and that lasts a month or more, depending on how much water we use. I run the raw water through an industrial Cumo cartridge filter and it strips out any precipitate. I use a 5 micron pleated filter and I buy them by the case. For us, it's an ideal setup.
Update- After much analysis paralysis, finally settled on the Frizzlife JG400. Chose this one because it has a backwash feature and a scraper, which means it doesn't need to be disassembled to clean it (nearly as often, I hope). Also came with an integrated pressure gauge. Finally, it was very attractively priced, at about $40. Online reviews for the filter were also good. Right out of the box, two downer observations:. First, it was advertised as having 20 gpm flow, but on the box it says 17.5 gpm (12.5% less). Second, the pressure gauge is in Bars rather than PSI. The pressure gauge is annoying, but nothing we can't live with, just need to keep a conversion chart handy to know where we are at, psi-wise. The flow number may be a deal breaker, if it impacts our pressure too much. I'm just gonna install it as soon as the arctic blast is over, and see how it goes.