Not sure what I have in my pool. Started opening things up 2 weeks ago and have sequentially run through a series of repair and replacement issues after a winter of neglect.
Here's last week's water settings:
Salt = 3640ppm
FC = 0
pH = 7.2
CYA = 0
TA = 60
CH = 200
I replaced my salt cell, added a bunch of bleach, and added CYA. I didn't complete a full shock however. Here's what the numbers look like this morning.
Water temp: 67 degrees
Salt = 3640ppm per strip
FC = 7
CC = 0
pH = 7.7
CYA = 70
TA = 70
CH = 200
Water looks good, except for one thing. I have this very fine yellowish dust/silt on the bottom of the pool, mostly in the shallow end. Push it with a brush and it immediately goes into a cloud in the water. Here's a picture of the bottom. Note the larger brownish tree pollen on the top of the water.
2013-04-20_12-14-00_543 by hlothrop, on Flickr
I was thinking that maybe it was time to replace my filter cartridges, but after reading more here thought I better eliminate algae as a possibility. What do you think?
Appreciate any suggestions. Thanks.