Hi everyone, I've been having this leak for a month now and I just can't figure out where is coming from. I assume it is the drainage pipe but why don't I also get dirty water? This is what I figured so far. If I shut off water to the toilet I have no leaks. As soon as I flush, the leak starts again and then stops after a while...it just drips for a couple of hours from my kitchen ceiling. I added some food colorant to the tank and bowl and it matches the color of the water that leaks so I have no doubt this is the issue. I am tempted to cut the stucco from the ceiling so I can confirm this and replace the pipe but I wanted to run it by the forum first just in case you have a better suggestion. I just don't understand why it only leaks clean water. By the way, I replaced the wax ring just in case and it made no difference. I also didn't see anything obviously wrong with the flange and pipe. The house was built in 1966. I am the second owner so I am not sure if the pipe was ever serviced. It is definitely metal. I didn't see any PVC. Thank you in advance for your help.

A few weeks ago, water was leaking from the base of the toilet. I removed the toilet in one piece to avoid an issue with leaking I had previously. I replaced the flanged and reassembled the toilet. Both the water supply line and left toilet tank bolt were leaking. I have since re-tightened the supply valve and it does not leak. However, the left toilet tank bolt still leaks and it's driving me up the wall. The bolts appear to be brass and are new and not corroded. I remember this happened years ago with 2 toilets and no matter what I did, I couldn't get the leak to stop and ultimately had to call in a plumber. I came this far and don't want to give in to call. Please advise. Thanks.