stain

  1. F

    Suggestions for using Jack's Magic Copper and Scale

    Recently bought a house and it came with a pool. It wasnt kept up for a month or two, and it started to go green. So I shocked it and put in algaecide (maybe did this twice, and used 6-1 chlorinating tabs in between), and it seemed like the last time I did it the next day or two a really bad...
  2. S

    Mystery stains on liner

    Hi all, I'm stumped on this one. So this little patch of yellow/brown stain appeared towards the end of last season. Can't brush it off, looks like a stain but thought it might be organic so I SLAMmed. I worked hard to keep FC greater than 30 ppm for a few weeks but the stain remained, and it...
  3. G

    Chlorine before Yellow Out

    Hi all, Thanks for the forum.......really appreciate the ability to ask questions here. Have two issues but will start with this one. When I first bought the house (with the pool and spa) it has mustard algae and yellow out did the trick extremely well. This year I didn't know I had water...
  4. D

    What are these stains?

    Hello! I moved to a house in northern California 5 months ago with a pool that I think is at least 16 years old. I've been learning a lot thanks to TFP and the water looks great, I test it all the time and take it to the pool store weekly. But the pool has had these stains near the main drain...
  5. C

    New Pebble finish stained

    Hello guys, need some help. I just got my new pool installed. It was filled with water about a week ago. Immediately after filling with water I noticed 3 problems. One was a "bare spot" on one of the steps where you can only see plaster and no pebble. The second is similar bare spots on the...