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I'm a newby with a new hot tub.Last Sunday I filed the tub, added metal be gone, balanced ALK but ph has been at 7.8. I also added defender to prevent scale as well as Spa Guard Sanitizer diclor to get to 4ppm. Yesterday I corrected the PH and its at 7.5.During the week each time I tested free clorine taylor test kit result was clear (0PPM!) so I added 1 to 1.5 teaspoons of diclor and then got in.Used tub three times and feel ichy.Maybe I should have superclorinated the tub and refilled initially? Anyway, last night I added 2.5 tablespoons of MPS and 1.5 of diclor.Would use of different chems be an idea i.e. bromine etc? I think I just might not be doing the right thing as a newby with the diclor. Maybe I should use the vision cartridge and be less dependant on diclor?Any suggestions would be greatly appreciated.
Drewstar,Thanks for your advice.I'm also using ozinator and vision cartridge to lower needed amount of diclor. I went in the tub last night and added dichlor after I got out and did not have the same reaction. I have a little ichyness but it might be mind over matter or residual from last week.I was thinking of shocking with dichlor (around 2 table spoons weekly) and waiting for levels to go down before entering tub. Do you think I should shock with MPS instead?