GL77
Member
I have a Kohler Rialto that is working fine. I just wonder why, every so often, maybe once a month, I will go into the bathroom to wash my hands or put something away and I'll hear what sounds like a bubble come up in the toilet, just randomly. I've never been able to look over fast enough to see a bubble so I don't know if it is coming from the bowl or the tank. Is there something I should check or is it nothing to worry about? I live in a small house, 1 bathroom, plumbing is about 15 yrs old, pvc DWV, all the drains are working fine. Just curious.