hi there, i might have stupid questions that most of you might think. I'm a woman who doesn't know about plumbing works but a worrier. i think my main sewer has been clogged and i would like to know that
- when the drain in a bathtub is slowly draining and some water still remains in the tub and slowly going down , are there any chances that the sewage water from the manhole is contaminating somehow back up in the bathtub?
- After i use the toilet and when i flush the water rises up high before it slowly goes down. Is that clean water mixing with the waste from myself (not the waste water from the manhole underground coming backup) right?
- are there any chances that when there is a clogging from the main sewage and the water that is left in a toilet bowl (before using toilet and before flushing) is contaminated from sewage water from the manhole somehow?