Recently I've noticed that about 20-30 minutes after flushing, the water level in the toilet bowl drops about a half an inch and will maintain its newly reduced level. There is no leak from the tank, and no more is entering the bowl. I'm on the 2nd floor directly above another tenant's bathroom. Could some inter-play between his toilet and mine be causing this? He says there are no apparent leaks in his ceiling. Does anyone have an idea what might be causing this? Thanks.
- posted
16 years ago