I could have sworn by paraguard after my first QT and seeing the results myself but this time it's been a much different outcome. Might do TTM with some tubs or buckets. The hardest thing for me is working 12hr shifts and basically being out of the house for 14+ hours a day then to come home help kids with online school problems, having dinner. Testing copper and dosing copper is just one more thing to add to the list of things I already can't get to on my work days. TTM might afford me some extra time especially if I mix water in larger batches to it's ready to use on tranfer days.