Over the past 12 months, I've been working away at putting in a new
bathroom/spa in the basement for the wife. Everything is pretty much
done and I did pay a plumber to come and do the drains for the bath,
sink, shower, toilet and relocate the floor drain. I don't feel
comfortable with touching anything related to the main drain.
He did all this work in January and I'm finally getting the bathrrom
finished to the point of using it regularly. A couple of days after I
put in the toilet (Toto Carlyle as recommended by the plumber), I had
some water come back up through the floor drain now located in the
adjacent room after the toilet was flushed. It looked like there was
an air bubble of some kind coming back into the toilet at the same
time. OK, that's a drag, so we checked the drain with a snake in case
there was something in the pipes and I headed over to Home Depot and
picked up a backflow preventer. I put it in and tested, but the
problem didn't recur. Today, the wife is cleaning the tub and just
running water in it and down the drain. She goes into the laundry room
and notices a little bit of water on the floor. That's really weird,
because we haven't had any issues related to water from the tub in the
past (she has been using the tub off and on since May).
Anyone have any ideas on 1) what the air bubble might have been and 2)
why this whole back up thing might be happening?