I just installed a jacuzzi-style fiberglass tub. I am having a leak at the main drain coming out of the tub. Using a brass type drain and overflow parts, there is a rubber gasket at the tub/drain interface.
Is it OK to use plumber's putty on either side of the gasket? I question, because of the vibration from the jacuzzi, concerned it might need a better solution.
Try some plumbers putty under the rim of the drain when you reinstall it. That and the gasket on the bottom should fix it. My unprofessional opinion.
Important note - I'm not a pro
Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013