notes...
* Salt may seem like a good idea, but... it probably won't disinfect the water. You would have to use an implausible amount. I really don't think it will work.
* Ozone systems are good.
* You have to filter out the chlorine first if you are on public water. If you are on a well, then you are better off because you don't have to filter out the water first.
* Your best bet is a hydrogen peroxide system. However, you would have to buy an expensive system to do it. It can't be dumped in because the exact level of hydrogen peroxide is important... otherwise, it can destroy the pool lining, I think.
* Your best bet, all around, is ozonation with hydrogen peroxide use. It is easier to manage, but ozonation doesn't destroy algae, just bacteria. Using hydrogen peroxide can help.
* Bromine is an alternative to chlorine... but it is also a toxin. Sensitive individuals who cannot tolerate chlorine often also have problems with bromine. Bromine is a preferred choice for Olympic pools (and I don't know why).
* Health departments have mandates requiring you to use chlorine. Inspectors judge the sanitation of your pool based on chlorine levels as stipulated by local law. It can be very difficult to get waivers without having lawmakers change the law. If you don't have the right level of chlorine, the inspector has to fail the pool, even if the inspector knows that you have taken care of pool sanitation through other means. However, the inspector doesn't have to report the "failing" mark on your pool. You can appeal to the inspector not to report it; thus, no action will take place to shut down the pool, even though it may be out of compliance with the chlorine standard for sanitation.
-- Caitlin

:yawning:
