Thanks PoolDoc. I have a box of borax, do I add it through the skimmer than? I've never added any to the pool before. The PH always seemed to be good to go. I'll be keeping an eye on the filter gauge. Thank you for the heads up there. Going out to check filter now actually And I don't paint my nails or color my hair while pregnant lol. I'm not to crazy concerned about the chemicals...just like to stay away if possible.