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I keep getting this yellowish green algae that tends to stick to the sides of the pool. It will go away with a shock but comes back quickly at normal chlorine levels. It can be somewhat stubborn to brush off, but I'm not sure if that just some staining. I've read that mustard algae tends to show...

Took over this pool in December, and so far have gotten the high CYA level down, did a SLAM and got the pool sparkling. Thanks for all the help and info so far. There is plaster flaking off of the top step in the shallow end of the pool and some of the seat of the spa. I've included some pics...

I drained part of the pool, took forever with a 1/4 hp pump! It was hard to tell what percentage I drained, but my CYA after refill is somewhere between 35 and 40, that test is hard to read. I've been following SLAM for a day and a half and the pool is really clear. Last night the FC was 18...

I got my test kit and performed the diluted cya test and got 120. Have a submersible pump coming in a few days. Am I right in thinking that I need to drain a third of my pool to get a cya of 40?

What about living in Las Vegas calls for the need to drain more often? I just tested the chlorine level again and the water didnt even change color, just clear. Should I add shock/chlorine now during the day to get the level up, or should i just wait until evening? Tf-100 test kit arrives Tuesday.

Filled out the signature with the info I know. I have not done a diluted CYA test. Before knowing better I got a basic test kit that only gives chlorine, ph, and alkalinity. When the pool first started going cloudy there was no chlorine reading, the water remained clear. I have been adding shock...

I updated my signature with the information I know of for my pool equipment. I have not done a diluted CYA test. Before I knew better I bought a basic test kit that only does chlorine, ph, and alkalinity. Have a TF-100 kit on the way. What is the blue pipe for? Could I attache a hose to that...

I've got some green algae growing and want to follow the SLAM process. Currently my CYA is 100, so I know I need to get it down before I start. The problem here is that I don't know how to drain my pool. I've attached a pic for reference. In the pic green is the main drain, and orange is the...