10" to 14" spot...but its not filled up anything? I call that pretty normal...I had my th350 re built 6-7 yrs ago...still leaked...bought another used unit ,had it rebuilt...leaked even worse, redid the original then it leaked a little less, still leaking...note I didnt do the re building two different shops did.....bugs me, but every two three weeks I just pour a bit more in...clean up the pan under...