Hi all, new here and could use some help with preparing my pool for use again.
I had a problem last year and my SWG went out. Algae set in badly before we realized what was going on. Using shock and algicide several times to clean up, I believe caused some drastic etching. I eventually replaced my SWG controller and cell to produce chlorine again. We had these buildups on the bottom of the pool that did not want to clean up.
I ended up draining the pool last week. (the water table is low, we have a ditch behind our house and is safe for now) What a nasty mess it was on the marcite lining. There was buildups some 1/4" high of green slime. I expect it to be from metals when using the algicide and plain ignorance of pool maintenance. We scraped most ot it off and now the marcite is etched in many places along the bottom of the pool. We tried using soft scrub to clean more and remove the discolorations and had no luck.
The next thing I did was to put water in the pool and added about 1.2 Lb of United Chemical "Pool Stain Treat Sequestrant & chelator" (oxalic acid). I only added water to just hit the wall in the shallow end. Deep end is 5' and shallow end is 3'. The directions guide me for 2Lbs per 20K gallons. I know I am much higher percentage, trying to clean it up. It has been sitting there now for several days. I thought about draining it and doing a muratic acid wash of a 50% solution. But I have read some things that scare me from doing that.
What can I do to make these stains less noticible ?
Thanks in advance,