Answer: If water pools at the base of your toilet during or immediately after a flush, chances are that you either need to tighten the bolts at the base of your toilet, or you may have a wax seal gone bad that needs replacing. First, try to tighten the bolts at the base of your toilet and see if your leak stops when you flush. If not, to ensure a correct diagnosis before going forward, add food coloring to the water in the bowl and flush twice. If you see the food coloring leaking around the base of your toilet, you can be sure that your wax seal has gone bad & needs replacing. This is a repair that you can easily do yourself and save a costly plumber’s bill!