Recent content by mdenbow

  1. M

    Gray sand on the bottom of my pool

    I have a tile roof and my pool is at least 30 feet from the house.
  2. M

    Gray sand on the bottom of my pool

    That's a definite possibility and could be contributing to the problem, but this "sand" was in my pool before the fires started. Although the air has been fairly clear over my house the last few days, the "sand" is still in there in the same quantities.
  3. M

    Gray sand on the bottom of my pool

    Just an update. I've completed that SLAM process and I'm keeping the FC levels at 3-5 ppm. The gray sand is still there. I vacuumed it all out yesterday and today it's all back. I don't believe this is dead algae. With the chlorine levels I've been keeping, there's no way algae can even start...
  4. M

    Gray sand on the bottom of my pool

    I'll take your word for it. Although I'm not seeing anything green in the water and it's clear to the bottom otherwise. I'm presently not in a position to SLAM it as that is a multi-day undertaking. Work is taking up all my time right now. All I can do is make sure the FC level stays up.
  5. M

    Gray sand on the bottom of my pool

    That was the first thing I checked. None found.
  6. M

    Gray sand on the bottom of my pool

    I don't brush it because of the lack of a floor drain. It doesn't get pulled into the skimmer, it just settles back to the bottom. I vacuum it out. I can get it all out, make sure my FC is good and 2 days later, it's all back, laying in the same area of the pool. I've shocked the pool several...
  7. M

    Gray sand on the bottom of my pool

    It kind of goes poof. If it is algae, it's like no algae I've ever seen before. It's concrete gray and looks granulated like sand. I keep the chlorine levels up in my pool regularly, so I don't understand how algae can ever start growing. But it is concentrated in certain areas of the pool...
  8. M

    Gray sand on the bottom of my pool

    I have not been able to collect any. I'm just going by what it looks like. I looks like granules about the size of sand. My water chemistry: Free chlorine-4, pH-7.6, Total alkalinity-65, Cyanuric acid-45. The water is crystal clear otherwise so I don't think it's algae or a chemistry issue. I...
  9. M

    Gray sand on the bottom of my pool

    I have this gray sand on the bottom of my above ground pool. Some of it is stuck to the vinyl and needs to be scrubbed off. I've seen other threads about this but I can't find one with my exact circumstances. I have a sand filter with a paper cartridge filter downstream of it. I had the volcanic...
  10. M

    Thanks Guys

    It is full. I guess it's hard to tell from the picture, but on the liner where the dark blue ends and the light blue starts, that's the water level.
  11. M

    Thanks Guys

    This is my pool two days after opening it from a long winter's nap using the techniques found on this website. Thanks guys.
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  14. M

    Chlorine Resistant Algae?

    The pool is in full sun most of the day. I'm a little gun shy about adding cyanuric acid now. I'm adding a little at a time to try and sneak up on 40ppm. I threw away the di-chlor tablets I'd been using. I've been using liquid sodium hypochlorite 10% solution, keeping the FC between 3-5ppm and...
  15. M

    Chlorine Resistant Algae?

    Finished refilling. Post fill chemistry: FC: 4 CC: 0 pH: 7.8 TA:80 CYA: <30 (The K-2006 CYA test only goes down to 30. I can still clearly see the black dot at 30, so I don't really know what the CYA level is) As I write this, pool is is sparkling clear and beautiful. I will recheck the FC...