On-Site Hypochlorite Sodium Generation

This product is pretty solid. The weak point is that it would have been nicer to have more detailed instructions, like a table indicating the process and the resultant strengths, but you can do that work yourself with some test strips and a little google. Get yourself chlorine test strips so you know how strong your final solution is.

Following the given instructions gives you about 200ppm, which is enough to make a good bleach disinfectant spray for cleaning hard surfaces.

Give it more salt and a longer processing time, you should be able to get a solution up to 1% or so, which approaches strong enough to use as bleach. You'll probably need to use 2-3x as much to get the same result as commercial store-bought bleach, but that's not a problem because this amount costs you less than a penny.

Although the cost savings could be huge if you're a person who uses a lot of bleach, the biggest plus here is that the bleach solution you get through this electrolysis process will be much safer than anything you buy at the store. Commercial bleach is stabilized with caustic lye, tends to be pretty nasty stuff. Make no mistake, this is chlorine, but the product you make with this process will not be considered "hazardous", unlike store-bought bleach. Also unlike the harsher chemicals in commercial bleach products, these are completely safe for the environment. What you make will decay back into ordinary salt water within a couple weeks.

As a side benefit, you can also use this device to make Hypochlorous Acid, with the small addition of an acid to the process. Something like citric acid is best, but you can also get a decent result with acetic (vinegar) acid. This is useful as both a disinfectant and an antiseptic for topical purposes; and also is something that could be sprayed on fresh produce before rinsing to harmlessly disinfect any surface microbes.

All in all, this device, while inexpensive, offers very high value for the price, as long as the person using it is willing to do a little bit of research to ensure they're using it safely and effectively.

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