Advice please.

[Watermom]

Retest with a drops based kit and repost with current readings. I'm especially want to see the next alk reading. If your ph is 7.2, you need to watch it and not let it drop any further. If it were my pool, I'd probably add just a little Borax and bump the ph up to about 7.4. Also, if your cya really is 80, you'll need to run higher than normal chlorine levels or you'll risk another algae bloom. See the chart at the following link.

http://www.poolforum.com/pf2/showthread.php?t=365

Watermom

[savdoc2]

Tonights numbers using the HTH drop kit:

pH 7.2
Cl 10+
Alk 240
Ca 280
CYA 70

[Watermom]

OK. As I said above, since your cya is a little high you either have to run higher than normal chlorine readings (see link above) or do a partial drain to lower it a bit. Your choice. Either way will work. Also, you need to lower your alk to between 80-125. You can read about how to do this in the thread at the following link.

http://www.poolforum.com/pf2/showthread.php?t=191

BTW: Until you lower your alk to the desired target, disregard my advice in the earlier post to raise ph. After your alk is where you want it, if the ph doesn't rise up on its own, then you can add a little Borax to raise it to about 7.4.

Watermom