Week 6 flowering changed from bottled water to tap filtered and distilled

wasup everyone jus got simple question has anyone else had issues when changing to tap water like seeing defects in leaves ? whats the effects to the bud my buddha is deep in flowering cycle anfd still looks to be doing well frosty and nice wouldve put pics up but u can barely see issues im talkin bout on pics cause of light../ im changing back to bottled for sure ...but the leaves have yellow spots and tips.....oh yeah btw im running 1000w hps with two plants flowering in a 4x4x10 grow general hydroponics nutes and aquashield for high temps causing bacteria ....roots look healthy ...oh yeah its been extremely hot in grow room lately over 90 .....water temps higher than normal too....any feedback will be appeciated

I'm guessing the bottled water you've been using is high in PH. As a result, there could be an interference with the plant getting the appropriate nutrients.

How much nutrients are you putting in?

A Ph meter is a growers best friend. keep the Ph between 5.5 and 5.7
if PH is adjusted, the difference of the water should be minimal.

Def need to keep the ph adjusted, as you suggest. Also need to get the air and water temps DOWN into an acceptable range. Those high temps can slow growth to a crawl, and stresses the plant a great deal. Your leaves spotting/yellowin could be a cal/mag deficiency. Your ph, uncontrolled, can lock out vital nutes, too.
Did it begin on lower fan leaves, first?
This link can be found on here elsewhere, but is a BIG help in diagnosing plant problems!
https://www.icmag.com/ic/showthread.php?t=11688