Question? We have the SW intex system and after the rain yesterday, the phis neon pink. Off the charts! I am researching and all I can find to lower it is muratic acid. My youngest son has sensitive skin and my husband got the SW sytem to prevent from using chemicals as much as possible. Is there any way to lower ph naturally? What is the baking soda for? If not, how in the heck do I use muratic acid. Also, after I tested my pool, alkalinity and chlorine are ok. Chlorine is on the minimum side, but the CYA test requires me to multiply 5 drops by 50 equaling needing 50 parts CYA to be added. What is CYA? I thought it was just the release of the chlorine from the floater in the pool. We got a LOT of rain last night so now my levels are slightly messed up. PLEASE HELP! Plus, I am trying to figure out how to post a new question on here but everything I click on says I am not authorized. How do I start a new post or am I even aloud?