I apologize for all the questions...
If we are going to be using a lot of sequestrant (Metal magic stuff) to pull the iron out of our water (3ppm) would we want to have a cartridge or sand filter? Also are there tests for metals, or do we just assume?
I'm just worried with backwashing a sand filter, each time we re-fill we are just adding more iron, to backwash it out and end up in an endless loop.
A cartridge filter, I am concerned that the cartridge will get plugged up with the metals. But at least we won't lose/add water with backwashing.
Thoughts? The pool store suggested using one of those filters that goes on the end of the hose to help pull out some iron. I thought if it is less than 500 gallons (how much do we use in backwashing???) that we could pull a hose from the house and use soft water, but my TA will be out of this world high...just know that from my fish tank. I can't adjust the PH for the life of me with our soft water.