Hi
mbar, I have read many of your posts regarding the stain treatment and have followed it with fantasic results. I swear that my pool never looked better than when I dumped the ascorbic acid it. It didn't really cloud up, but the water was so sparkly! Anyway...I trust your opinion because I know the ascorbic acid treatment works, and you are in a similar area of the country so your conditions (i.e., weather) more closely mirror mine.
Anyway, here are the numbers today:
FC 25 (I shocked to be sure no algae)
TC 25
CC 0
PH 7.4
TA 100
CYA 90
CH 210
Pool remains a cloudy, but it is slowly clearing. Pressure on the pump is maintaining a steady 12-13 PP, I don't think it is filtering anything, nothing major or quickly that is. I can still brush seidment off of the bottom, which then reclouds the water. The sediment is not easily picked up by the vacuum. Which I don't really understand. It will kick up when brushed, but when I use the special roller vac head for concrete pools,. it does not pick this stuff up. Was wondering if I could use a vac head with a brush? (any thoughts-I was under the impression that those were for vinyl only)
The other thing I do not understand is the slight drift of the PH & TA. I have added only (and I really mean it) clorox bleach 3 x 1.5 gallons. I am not aerating the water, you do see rippling, but it is not bubbly at all. We have had some evaporation of the water, and here is the question: will that affect the chemical balances? For example, I know splash out will help the CYA go down, but does evaporation? When pool water evaporates, does it take the suspended chemicals with it? I was just curious about that in trying to figure out the PH / TA increase.
Not sure what to do at this point. I have a bottle of floc, thought that I would try that. Pool has a very light stain all around (as usual). Still not sure if I should add calcium, am really on the fence about that. Will probably have to add fill water due to no rain and evaporation. The fill water is very hard and contains calcium. I am assuming that cement pools should not brush up dusty clouds as a byproduct of having a cement pool. Seems commonsensical.
My pool seems to get constant recurrent stains. However, even though I was maintenace dosing, maybe it wasn't enough? My pool was SOOOO heavily stained I used 12 pounds of vitamin C when I did the treatment. I tell ya it looked so nice after the treatment. I am thinking that maybe I need a complete water refill next year? Start over and fresh. We have been toying with the idea of a resurface due to the fact that the surface paint of the pool is coming off and the texture is rough and inconsistant on the feet. I don't mind, it makes it not slippery. My pool is very old, but well built. I would like to get through one more year before an overhaul. I am wondering about the metal magic product. I have only used the Pink Stuff.
Thanks for your thoughts.