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    Is this mustard algae?

    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...
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    Plaster flaking off

    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...
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    Help with partial drain

    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...