bk406
0
I had an iron problem last summer and I have a bit of one now for reasons I'll start a separate post on later. What i'll say next may sound strange, but I know it can work. I actually did it by accident. I added quite a bit of water to the pool after some heavy duty cleaning and vacuuming to waste after I put in my paver pool deck. Anyway, when I added about 600 gallons of water, later in the day, my water turned nice and green. Clear as it could be, but emerald green. I mistook it for an algea bloom since my FC got a bit low. So..I brought the FC up to around 20 ppm since my CYA was set for a SWG. In about 4 hours, the pool was clear and blue. No dead algea percipitate like I would have expected. I backwashed the filter even though the pressure didnt change. What came out was the orange-ist, rusty water with big chunks of orange particles I ever saw. After more research, I figured out it was the iron in the water. One of the ways water is treated for iron is to highly chlorinate it, let it form a percipitate, then filter it out with sand. This is exactly what I had done on accident. If you cant get the iron to sequester as well as you like, you might try to shock the pool to 20 ppm or so, filter, and see if it clears. Don't nuke it, of course, but a mustard level shock for you CYA level might do the trick. You cant just add little chlorine. All that does it START the process. You really need a shock level for it to work. I did it 3 times last summer, and it worked every time. This summer, I'm going to get a Hydro Pure Metal Trap and see if that helps.