Waterbear that is a very detailed and informative reply, thank you.
As I said, we have had the tub just under a week, we haven't been able to use the tub at all over the weekend and when I came home from work today I thought that I would do a water test
First thing I noticed when I lifted the cover was that the water was a little cloudy.
free chlorine was at 0ppm and PH was at 6.2
after adding chlorine granules and PH up my readings are
free chlorine 80ppm and PH 7.2ppm
However the water is still the same misty/cloudy look to it.
would this be ok to use ? a