Thanks to this forum, I did an ascorbic treatment yesterday – we moved into a house with a huge, but rather old-looking pool 2 summers ago. Due to all kinds of problems with the winter cover the liner was deeply stained – every square inch of the liner below the waterline was stained: the blue parts were green & the white yellowy-brown. We thought we were going to need a new liner ($$$!). The Ascorbic treatment – which I hoped would make the pool look slightly less disgusting – made the pool look amazing in the space of 15 minutes: better than it’s ever looked since we moved in…
Anyway, to my question. I added the advised levels: 4lb of ascorbic followed by 2 liters of “Metal-free”. I was wondering if the sheer scale of the staining meant I needed any extra sequestrant (I don’t think I need any extra Vitamin C because the liner is spotless )
I’m just concerned that all the iron gets mopped up – don’t want the miracle to go into reverse…
A couple of other things: I did the treatment around 5pm yesterday, so I haven’t started to balance the pool yet. I noticed this morning there was a froth collecting around the skimmers: is this something to worry about?
And I’m rather daunted about the re-balancing: I’m seeing that establishing a ph of 7.2 is good, but above 7.6 sends the process into reverse; my test strips are hardly any different in color at those two levels – do I need to add it a bit at a time and keep dashing to the pool store?
And when will the pool be ok to swim in? Once the chlorine is back to a safe level?