marquismark

Thank you Chem Geek! I am glad I found this forum!!

Hi Chem Geek . It is actually this product (I had the name wrong) http://www.spadepot.com/shop/Control-the-pH-P664C634.aspx. And here is the Active ingredient: phosphate buffer (as KH2PO4/K2HPO4). So your assumption was correct. I have been doing this weekly TA - PH adjustment for 5 years now and someone suggested this product. I always the adjustment based on values recommended by my dealer. In researching this product it led to this website. I have read a bunch of the stickies and other posts. Wish I would have looked this up earlier I obviously have been over adjusting and will try your suggestion TA around 50 and add the borates, rather than the control the PH stuff. Thank you for your help. But I am still curious how does phosphate buffer control the PH?

Hi Chem Geek . It is actually this product (I had the name wrong) http://www.spadepot.com/shop/Control-the-pH-P664C634.aspx. And here is the Active ingredient: phosphate buffer (as KH2PO4/K2HPO4). So your assumption was correct. I have been doing this weekly TA - PH adjustment for 5 years now and someone suggested this product. I always the adjustment based on values recommended by my dealer. In researching this product it led to this website. I have read a bunch of the stickies and other posts. Wish I would have looked this up earlier I obviously have been over adjusting and will try your suggestion TA around 50 and add the borates, rather than the control the PH stuff. Thank you for your help. But I am still curious how does phosphate buffer control the PH?

Has anybody heard of this stuff? what is it? How it works? is it ok to use? I have a problem with TA going to 50-70 and PH going above 7.8 in my bromine spa. I have been told to keep TA at 100 -120 and PH of course 7.2-7.8. In a normal week I have been adding 3-4 oz. of sodium bicarbonate to get TA to 100 or above then 1-2 oz (or more of muriatic acid to get PH back in range. it seems like a lot of adjusting Someone suggested this as a solution as I could then adjust TA as needed and it will lock the PH at the correct level. Then just shock as normal.