Search results

I am getting these yellow flakes on the bottom of my hot tub. I changed the water before it got too cold (November) and will change again today, but they keep showing up! I use 1/2 household softend water and 1/2 well water (no minerals) to fill. I use acid and bleach only.

My CYA was 60; I replaced 1/3 of the water to get it to 40. My PH climbs to 8.0 and ALK is 175 and I've been using muriatic acid to lower it. My FC is 2ppm and CC is .4ppm. 2,000 gallon pool. To shock the pool, using bleach, I need to raise the FC to 16 (per chart), but should I wait until I...

I have been using Dichlor daily in my 1,895 gallon swim spa. My CYA is at 50. Due to this, I wanted to switch to sodium hypochlorite and the forum (run by sales people) had a fit and said it would void my 10 year warranty. The warranty will be voided with CALCIUM hypochlorite. The confusion...

My source water has an alkalinity level of 300 ppm. The pH is 7.6 ppm. CH is 200. The calculator recommends muriatic acid to lower PH. 1985 gallon swim spa- not yet filled. Should I worry about the high ALK or just work on my PH? Thanks