I just had a bathroom put in my basement. It's been working fine but yesterday we had a lot of rain and now the toilet won't flush and the shower will not drain.
It is a septic system and the other toilets and sinks have no affect of the basement bathroom. Every other sink, toilet and bathtub in the house drains just fine. Any ideas?
If your basement has a back flow preventer when the water level is high the pressure in the line from a raised water level is probably the cause. I had this happen, built the bathroom in the summer, it worked great until several days of rain then no draining like you have. Whatever you do don't make the mistake I did and think the back flow valve was plugged , when I opened it up got all the brown trout from the line above. I ended up having to add a pump to the system if I remember correctly it was around 500$ for the tank& pump a small one but we never had any problems after that.
