We had our septic tank pumped about a year ago so I know it does not need pumping again. The problem I am having is when I run a load of laundry and it is time for the water to run out we get a bubbling sound and the water run back into the tubs and toilet to the point on the toilet that I have to plunge it to keep it from overflowing. I don't know what to do we live on a fixe budget and my husband is not very mechanically inclined so I need a very detailed description on as how to fix this problem any and all help will be appreciated. Thanks for your time.

Your details are a littlel sketchy but I' try. You have a partial blockage downstream from the fixtures are backing up.; The solution is to rent a sewer machine and go down the lavatory roof vent of the bathroom that's backing up. Put out enough cable to reach the base and 25 feet more. Good luck, Tom