A couple weeks ago my master bath toilet almost overflowed. I cut the water off, waited till the next day for it to go down some, then plunged it. I haven't used it since. Then a couple days ago, I got out of the shower in the same bathroom and there was water everywhere. The drain is slow in there and there was still a few inches of water in the tub. I couldn't figure where it had came from. Toilet ot tub or wall. The house is on a slab. The next day I showered in the hall bath, again the drains are slow, but again the master bath had water everywhere again. I just snaked the main outside. Not sure if the snake went to the septic and drainfield or in the house etc. It was a 25 ft and I did have a hard time in several spots. What do I do now. Run water?

Well for openers and imeaditate relief you should have your septic tank pumped. Next the drain field should be checked. It sounds like your drain field can no longer disperse and percolate the liquid the septic tank sends it. Your drain field may have to be moved. Good luck, Tom

You can have a clog in several places and jumping to the septic tank is a leap. How well does your other bathroom drain, any issues there? What about the itchen sink, can you cause a backup by running litchen water?