Hope I posted this to the correct forum! I added (cheap) Sam's Club algaecide to my pool about two weeks ago and it slowly started turning green. Through research I found it probably contained copper and that's what's turning the pool green. I brought a water sample to the local pool store, they tested the water (copper was 1 ppm) and they sold me a product that chelates the copper causing it to fall to the pool bottom to be vacuumed up. After two days it was still green and was now foaming profusely. They wanted me to add 25 lbs. of hardener so I also broadcast about 8 lbs. across the pool. The chemical seemed to stay on top and make the foam more "solid"! So I went to Leslie's with another sample and copper was still at 1 ppm. They sold me CuLater pouches so I put one in each skimmer. They've been in a week now and the pool is a little bit less green. I also added a couple of bottles of Metal Free this week too....nothing is clearing it up. Leslies told me the CuLater could take up to a month but, by then, the summer will be half over. I guess I'm wondering if I should just cut my losses, dump it and start over? My pool is in ground, vinyl liner, 35,000 gallons, DE filter. All chemistry is pretty good except the hardness is a little low. Any advice? I've had the pool for 10+ years and it's always been crystal clear!