racefanone
ED you did not say if you have a 2pc. or a 1pc.stool.If you have a 2pc,tank and bowl,you might check to see if water is leaking from between the tank to bowl connections and running down the back of the bowl.Maybe the bowl is cracked and leaking.You might try cleaning the closet collar,run a bead of clear silicone around the collar,set the wax ring on itand then put another bead of silicone on the top of the wax ring ,clean the stool bottom and set it on the wax ring.let us know how it turns out ,good luck 
