Hey I'm pretty new to pools. We have just a cheapy Intex pool that holds about 8,300 gallons of water. Since we put it up we have not been able to get the PH to come down. We used an entire 3kg thing of PH reducer that had NO effect at all. After looking at lots of posts on here and learning about Muriatic acid we went and got some of that. We put about 2L of it in today, the calculator on here said to put about 54oz. And still no change, maybe very slight but not really noticeable Help! Not sure how to get the PH under control or what is causing it to remain so high after all of that! Oh our pump is an intex sand filter pump, if that makes a difference at all. TIA