Hi,

I noticed a leak in the supply tube of our toilet. Its coming from where the supply tube connects to the tank. Need some helpful suggestions that I can put to work and not have to call plumbing and spend money.

No problem! Simply snug the supply nut vip while holding the ballcock from turning. (see image). If this has leaked at installation ou might have the threads crossed. If that's the case turn the water off at the angle stop and unscrew the nut and start it again. Good luck, Tom