Hey guys I am needing to refill my 390 gallon tub this weekend, still getting itchy rash next day - it is currently draining and I will refill later today.
In order to get this right please provide some guidance what I should add at the start and how to maintain I will then use tests trips to maintain PH and Alkalinity.
Once Tub is filled to desired level what should i add out of following and after what duration
Nature 2 Spa Sanitizer, was replaced two weeks ago, should be good to continue to use.
Chlorine - How much should I add and when? Should I run a clean cycle and if so for how long?
Shock - I have MPS Spa Shock and have ordered Dicholor (arrives tomorrow), how much should I add and when ? Clean cycle for how long?
Testing
I understand that ALK levels need to be 40-120 PPM and PH 7.2 - 7.8, I can use test strips with PH up / down to maintain, any other tips?
TBR and FCI I understand these should be 3-5, will my test strips reflect that soon after adding these chemicals?
Hard water - what can I do to bring this down?
Any other tips would be greatly appreciated.