You can monitor the pool for any signs of metal staining / water tinting. If the water takes on a tinted color - usually green, brown, blue, yellow - but is still clear (unlike algae which results in green and cloudy water), you can add a sequestrant to keep the metals in suspension and make the water appear clear. This would be the quickest way to make the water appear clear and guard against metal staining. Would definitely stop using any product that contains copper or other metals. Over time, the metal content will gradually diminish with splash-out, backwashes, and top-offs.
If you do have to go the sequestrant root, find a sequestrant based on HEDP, phosphonic acid, or phosphonic acid derivatives as these are the most effective. ProTeam's Metal Magic and Jack's Magic The Pink Stuff (regular), The Blue Stuff (fresh plaster), and The Purple Stuff (salt) are some of the top sequestrants. You can also find many other brands with similar active ingredients, some of which are noticeably less expensive.