How to fix a leaking crack in a bath tub?

I took a bath the other night and got out with the floor sitting in water. then i relized there was a crack in the bottom of the tub! is there a good easy way to fix this??How to fix a leaking crack in a bath tub?
I'm assuming you have a fiberglass tub and not a steel or cast iron tub. Hairline crack; spider crack can appear out of no where due to age or improper install from years back. You can go to a Home store and pick up a DIY repair kit for fiberglass tub. It involves sanding the area; taping with fiber tape and filling with a gel like compound. Then you need to apply paint/ gel coat finish layer on top of that. You can call a tub/tile refinishers like miracle method and spend around $ 150 or you can DIY for $ 25 bucks. I'll throw in a wild card... If you call a professional refinisher for repair, ask them to inject expanding foam underneath the hole/ crack prior to fixing it. 90% of the time the hole/ crack developed due to shoddy install of your tub in the first place... improper or NO support underneath the fiberglass tub( usually expanding foam or even concrete is placed before tub is set in during installation). And if the refinisher can't comprehend what you are asking...run don't walk and find someone else qualified who have enough experience in fixing your problem. Without a proper ';support'; underneath the tub; fixing the surface crack is useless and I guarantee that the crack would reappear...sometime in the near future.





If this is a cast iron or steel tub; you have a big problem...its rust-through and the tub should be replaced.





Good luck..How to fix a leaking crack in a bath tub?
Sorry, it's not easy fix. Either the tub never rested completely on the floor or the floor rotted leaving no support for the tub bottom. This must be corrected before the tub can be used after patching. If the tub is on a concrete slab then foam can be sprayed under the tub for support. Advise using a professional. They would know just the right amount of foam to use.
If you're good with your hands, a tube of silicone or some form of epoxy to fill the crack can probably fix it. After that, mask it with clear, strong tape.