Good for you for standing your ground!! Believe in your own test methods--your eyes are much more dependable than the test results of somebody that's in business to make money by selling you stuff based on "their" test results!!

If you'll give that panty hose a squeeze every now and then, it will help speed up the process. I would still give it 2 or 3 days after it's all dissolved before testing for it again , though, unless you've ordered a large size container of the reagent (which you can do, by the way--and wouldn't be a bad idea if you're gonna use trichlor for chlorination so you can keep an eye on what your CYA levels are throughout the summer).