Not about pools, but metal stains anyway.

We're on a well and it's pretty clear that the original owners didn't filter for a while and we're still cleaning reddish, rusty stains from a lot of surfaces. At some point they did install a point of entry filter but it was grossly inadequate. I replaced it with a GE model that takes a 4.5"x9" cylindrical element. Still not ideal, but the house flowrate's back up and we seemed to have stemmed the staining.

Anyhoo, I've since started using Doulton reusable elements. They're a pleated, polyester material and supposedly can be washed and reused up to 50 times. Unfortunately Doulton (whom I've contacted about this already) claim I should only need to brush it out with a stiff nylon brush, or use a 'household solvent'. Well, the brush doesn't phase it and I don't know what they mean by the solvents. This is domestic water.

So I throw the question out to the bunch: what do you think would be a good solution to use to soak this in that would break down your run-of-the-mill iron and sediment deposits?


Thanks for any ideas.

C.