So the septic backed into the house we just moved into a couple weeks ago. After a search we found the septic (that was nowhere near where it said it was on the survey) by digging around until dirty water began bubbling up. We had it pumped out as it was obviously full beyond the top. Knowing absolutely nothing about these type of systems but unfortunately in the middle of a crash course, I took some pics. Here is the tank: As you can see, the baffle is on the right leading to the leech field. We dug up some of the line that goes to the field here: My questions are, I am assuming the tank should have never gotten this full and should have leeched out correct or could it be that just nobody ever had the tank (1000 gallon) pumped in the last few years and the solids were clogging the baffle? Isn't the baffle supposed to be a "T", and not what I have here? Would sawing a couple holes up top fix that? In the first pic, I noticed water slowly streaming out of the baffle into the tank. I waited for it to stop and then had the wife run the sink for a couple minutes and it began pouring again. I would imagine this is not supposed to happen? Would this indicated a problem in the line past where the greyline comes in? What can/should I do here? In the second pic, what exactly do I have here? The line runs into this other type of line which I have no idea what it is. Any help will be appreciated.