petrous

Talked to a guy who used to work for magnapool but has left the company. He says magnapool would be best for an indoor pool mainly because there is less sodium chloride and that it should be less damaging to the internal environment (apart from feeling "softer" and the claimed health benefits. I did ask about the effects of potassiam chloride and magnesium chloride but he said that given the concentrations of each will be less the effects should be less. One interesting point he raised was about the salt content of liquid chlorine. He says in an indoor pool when you don't have dilution with rain water and less backwashing if you use liquid chlorine you will be left with a slow accumulation of salt that after a few years will leave you with equivalent of a salt pool.

Thanks for all the above replies. I have some some more advice re sanitation -all of it conflicting! I am getting three quotes from pool builders The first - probably from the most experienced and well known of the builders is for a combination of a salt chlorinator and an ozone system. The second uses a salt chlorinator - this builder mentions using magnesium salt instead (not magnapool - juts using a different magnesium salt with a standard salt chlorinator (puresilk)) The third says you shouldn't use salt in an indoor setting and advises a simple (automated) chlorine system (rolachem).

We are planning to put in an indoor pool ( 10m by3m) and spa and have had conflicting advice from pool installers about sanitation. We are leaning towards a fully tiled concrete pool. Most pools here in Australia use salt chlorinators but one installer said salt should never be used in an indoor pool and advised a liquid chlorine system (with automation and orp and pH monitoring). Others have said that there is no problem with salt. Does anyone have any opinions or experience in either setup - particularly in regards indoor pools. . Is there any role for ionisers/UV etc. We basically want a minimum maintenance pool (and don't mind paying a bit more for it) We have also had different advice about whether to get in infloor cleaning system is worth it. A robot is much cheaper and others have said an infloor system is overkill for an indoor pool