I have the TFP testkit and have used test kits in the past. However, I'd like to find out how others actually use them. It seems that I'm always dipping my arm into the pool water and getting all wet for every test.
I started just filling one quart sized bottle with water then using that to do all the tests, this at least limits my whole arm getting wet to once. However, when you rinse the vials between tests do you rinse with distilled water, pool water, tap water?
Just kinda curious as to how others have figured out the mechanics