I have a 14x 42 inch intex pool

our water out of the tap is high alkalinity (around 250 ) with a high ph of 8.4

we have the intex salt chlorinator as well

right now our free chlorine is at 3ppm
ph at 8.4
ta at 240 (or higher, the test strip doesn't read that high)

the water is clear smells nice and we don't have any issues with burning eyes or itchy skin
I need to know if keeping the ph this high (its normal tap water level) is going to cause problems in the future weeks. The pool has been set up for only a week and my kids use it everyday