We moved into a house over the winter and inherited our pool. We LOVE it, thanks to this site! However, I am ABOUT TO PULL MY HAIR OUT over reoccurring metal stains. Everything has been perfect, except outrageously high CYA due to the old owners using pucks, and, these stupid stains that keep making my entire pool look dingy! I did a series of drain/refills and now my CYA is 50. I have had my tap water tested that I fill the pool up with and it came back 0 metals of any kind. I am on city water and I have even discussed this problem with several neighbors who have pools and they have never had this problem. I am sick of spending $75 bi-weekly at the gosh darn pool store just to brighten my pool back up. Anyway....here are my questions:
1) I have seen a few "waterbugs" in my pool, and I have heard this is usually a sign of algae. I am using a skimmer sock and change it twice a day but the last few days it has had green fuzzy stuff in it. Could this be algae? The pool is crystal clear, minus the dingy liner and stairs due to said stains
2) I haven't had to SLAM the pool yet, but should I do this just in case before my AA treatment and sequestrant since it's not recommended for a while after the treatment? I would hate for an algae bloom to happen and have to SLAM and ruin my AA treatment.
3) Can I SLAM, do my AA treatment, plus sequester the heck out of it, and then backwash and drain as much as I can? Since the metal is supposed to be sequestered, wouldn't that be the best time to get it all out of the pool? I don't care if I have to drain the whole darn thing at this point. I just want my pool to be bright and not dingy and have to deal with this every two weeks or so.
I have been using the granular ascorbic acid (2lbs) when doing my treatments, and adding a whole bottle of sequestrant about 30 min afterwards and the recommended maintenance doses. It is INSTANT beauty! It works perfectly, but the stains slowly creep back on my stairs and liner after about 2 weeks. When treating I do lower the ph and wait until Cl is 0, and I am slowly bringing back up those two over 3 or 4 days or so after the treatment.
Any input or help is greatly appreciated. I am at my wits end with this. I am listing my test results from this evening below.
TA 130 I know this is high but was told not to worry about it unless Ph rising gets annoying, which it is starting to bug me.
Cya 50 or 55
Thanks guys! I don't know what I would do without this site!