If you now have your pool water tested for metals and it shows a measurable result, then you could try an experiment with
Culator Metal Remover rather than using a metal sequestrant on an ongoing basis. This isn't a standard recommendation (using a good sequestrant is, as noted in the previous post), but I'm dying for someone with a significant metals problem to try this product to see if it actually works as advertised to physically remove metal from the water. We don't have a lot of options for dealing with metals and a sequestrant really just hides the problem and requires periodic addition.
On the other hand, if your pool is large and you've got a lot of metals, the Culator will be very expensive. I'm kind of hoping your pool isn't too large and you have measurable, but not too high, a metal reading.
