I was wondering if you can check the salt level with a saltwater Hydrometer and what would 3% be on it? It starts at 1.012 and goes to 1.032 I'd like to know That I have exactly 3% salt level.

Not sure how one of those work, but the drop kits work easy. Watch the decimal points though..... there's a lot of difference between 3% and 0.3%..
The decimal point is a killer.....