I just had to post this, when i seen leaking under bolt.. last year coming back from Banff,AL. It was leaking at the bolt.. stopped using bath sink. It stopped.. when i got home , i removed the bath vanity. To my regard the leak was at the faucet hose. Just needed to tighten the nut.. lesson leraned ..check that first!!! I might do that mod with the hatch , cinch i took it off already.. Very Senior moment..