Did you know that they pressurize the drain system after installing drain pipes and a septic tank? Well, they do to test for leaks. The problem came 4 days after we started living here when some water started coming up through the drain in the utility room. The eighth plumber I called on Sunday morning answered and was out in an hour (Shameless plug: Three Amigos Plumbing Jeff Janssen, 208-255-4380). It took him about 5 minutes to walk out to the septic tank and pull out the plug used to test the system during pressurization. $113 of my contractor’s money later, and the problem was solved. We’re back in the flow so to speak.