Howdy,
I've installed a new sink, faucet and drain in a bathroom.
I followed instructions and all went according to plan, but the drain leaks from the uppermost gasket right underneath the sink. Is it more likely that a) I just need more putty than I could possibly imagine around the flange, b) I need a different drain (bigger flange?), or c) I've messed something else up?
Thanks, JSH