I don't know what he used as "glue" or even if that is what the "diesel" smell comes from. But what else would it be?
He was up to his second or third week working on what we thought was a 4-5 day job, and we started repeating that we thought it would have been done sooner, and that there WAS a deadline eventually. He started working a little more than 1/2 days, and may have started cutting corners.
And yet, that should not have affected it because more than a week went by between his closing up the under-the-shower-area, and his authorizing the shower for use. So I have no idea why/where/what made the smell. It is noticeably less after a few weeks, and even at the start, it only smelled strongly for the first half-minute after running the water.
P.S. He did the job for a flat fee, so taking three or four times as long as expected didn't cost 3-4 times as much. It turns out he's semi-retired even while working on a job, and 4-hour-days were his maximum effort. (We should have discussed a done-by date up front! But he did good work, except for this strange smell that is finally fading.)
Strangely, this is not TOTALLY off-topic. Only mostly-off-topic.
