I will be more vigilant watching and recording PPMs and pH. pH out of the tap is a pretty steady 7. PPM from tap is 170.

Normally I fill up a 5 gal bucket with tap water, cover it, and drop in an air stone. I have no idea if the air stone is needed for just the tap water.. But i had an extra and thought it might be better than just letting it sit. Then I fill up a 1 gal pitcher and add nutes according to instructions. I have been only using 1/4 to 1/2 strength every few days.

Thanks for the advice. I'll let ya know about the pH and PPM after monitoring them for a while. Until then i'll try and keep from burning them