Hi All,

I am trying to lock down an issue I'm seeing w/ two toilets. The first was most recently installed about two months ago and has not been problematic until recently.

I first noticed the condition a couple of weeks back - the grout lines at 6 and 3 (looking from the front) had darkened. I first assumed that my 10 year old son just had bad aim and a tissue threaded under the base (it's not caulked) came back wet dark and pee-flavored. Problem solved, so I thought. I dried it out and cleaned what I could and called it a day.

Flash forward however it does not seem to be getting dryer. I left a tissue under there today and it wicked up a bunch more juice. I figured it was new wax ring time but then also wondered why the water wasn't a little more diluted than it was.

To add to the fun, I also noticed a similar line at the six of our 2nd toilet (this has been working for more than half a year now. My son also uses this one fairly often and fishing more tissue yielded the exact same results. Its also worth noting that we have been living back in the house full time for only about a month - before that it was mostly me using the toilets, and I have fabulous aim . So it seems likelier that it's his aim that is the problem but if so, what's the half life of pee under a toilet? Wouldn't it eventually dry up? Also wouldn't there be some other indications of spash besides the grout lines?

I guess the easiest way to confirm is just ban him from this toilet for a few weeks and see what happens. Can't think of any other way to confirm bad ring or crack w/o pulling up the whole toilet, or maybe a dye test - but I don't know if that will permanently color the grout.

Thx for any advice!