Hello Pool Forum.

I have not posted recently as things were going fine, but I just realized that my Aquapure 1400 was dead (it stopped telling me about the general fault on the RS6 for some reason) - the pool company is there now fixing it supposedly, but now my chemistry is off and there is some alage growing. I think it is the green stuff.

Can you give me ideas on what needs to be done to get things back in line?

On Sunday, this is what I had (pool is about 18000 gallons, dark Plaster, 1 year old):
FC 2ppm - added 2 gallons chlorine in 2 days. (I am sure it is 0 now based on alage growing)
CC .4
PH 7.1 - after adding my weekly 1/2 gallon acid
CYA less than 30 could barely see the black dot.
calcium hardness, 600ppm (??)
TA 70 PPM
Salt 3200.

So, I need to get my stabilizer back up, I know it was about 50 or so at the beginning of the season - did the kids splash that much out?

I really don't want to pay Leslies $33 for the stabilizer, what is better alternative? How should I add it? (I have only used leslies $$ product so far)

What else do I need to do?

Thanks for any advice.

Chris