Re: leaks from bolts under toilet tank
Usually you just put a neoprene (black rubber) washer under the head of the bolt. Don't use putty, and don't use a metal washer between the bolt head and the neoprene washer. The neoprene washer should be in contact with both the bolt head and the toilet tank. If you still have leaks, try a thicker washer.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.