3 pf the 4 return eyeballs are pointed slightly up, water does ripple, 4th one is a diverter eyeball pointed 45 degrees down, that was done to help the Kreepy Krauly get to the shallow end. No waterfalls , fountains etc. I did get the TA up to 100 a while back by adding a LOT of baking soda, after slowly adding acid the next day over a period of a few days, the Ph settled at 7.6 but TA was back down to 80.

The Protectall Supreme MSDS just says "Non-Toxic Cleaning Compounds & Bio-Degradable Surfactant". In hindsight, I agree with you, waterbear, a lesson learned here. Never heard of adding borates, will do some reading. My elementary chemistry knowledge tells me that whenever 2 molecules of HCl meet one molecule of NaHCO3, they react and create salt and carbonic acid (NaHCO3 + HCl → NaCl + H2CO3). Could easily be wrong, maybe someone can agree/disagree with this.

Thanks and I'll post back in a few days with updates on the water chemistry.