Hi, I am new here and after reading some other threads here it seems like you guys have a lot of great knowledge about these expensive things. With that being said I have a question. So no matter what for the past 2 months I have been going back and forth to Leslie's and other pool stores trying to get help for this Algae. I will let the pump run constantly for days at a time putting algaecides in it and shock and it will clear up and they will say all my levels are correct, but two days later more algae is growing. four days later and its completely green again. I haven't been able to use it yet because of this. The worker at the pool store said it may be because the sand hasnt been replaced in ten years. I bought sand yesterday and replaced it last night. I have yet to run it this morning. Could that be the case? I am also recently having a blow back of water out of the skimmer and have to prime it each time I turn it on this season. Can you guys help?
Thanks!
Thanks!