Holy Water "ticks"

And end up waiting forever if it turned out that it didn't change the rate of decay. You'd be unequipping it every tick and no dura would be lost.. and you'd be testing forever. Considering how long it takes for 1 dura loss through ticks in the first place, you wouldn't know if you weren't losing dura or it just lost very, very, very little.

That's why i said someone with a lot of free time. I'm not saying it should be done, I'm saying that it can be done, so whoever tests it doesn't really have to admit that they did it through "witchcraft" or whatever.