I have an Intex 16x48 ultra frame pool and filled it up last weekend. Our water had a slightly green tint that worsened when we added chlorine. I took a water sample to the pool store and thet informed me it was a metal. I was sold Bioguard pool magnet and some powder to coat my filter with to catch the metal. I followed the directions for the next 24 hours and the pool cleared up almost pretty good.
I felt it still looked slightly discolored, but they said it wasn't and was safe to swim. YEAH!!! After a day in the pool, I did a check on my chemicals and noticed by chlorine level was barely registering. I thought this was odd because before taking a water sample in to the pool store, I had shocked the pool twice and loaded it with chlorine in an attempt to rid the pool of the green color, which I thought might be algae. When they tested it, the chlorine levels were very high and we had to stay out for a couple of days for it to come down.
Now, after only 3 days, the chlorine was barely registering. So, I added a chlorine tab. The next day, the chlorine test showed no chlorine. I then added two chlorine tabs. This morning, still no chlorine. Again, I take a sample in to be tested and was told I now have a chlorine demand. Something was attaching chemically to the chlorine. So...I was sold 7 bags of Burn out 35, which I have been administering all afternoon. And guess what! My pool is back to that lovely clear green color again.
After some research, on the dreaded internet of course, I found where some people get a chlorine demand from metal removers. Iron OUt was one that had such complaints. I think I am having the same problem. Each time I go in, the pool store is selling me 50-70 dollars worth of chemicals and I seem to be flipping back and forth.
I also read that HTH metal control does not interact with chemicals like many metal products. Does anybody have any suggestions please! At this rate, considering the chemicals bought when the pool first went up, I am going to go broke before getting my water right LOL! Any help would be greatly appreciated by me and my 7 yr old who has spent more time looking at the pool than in it !