Just bought a new old house (built in 1966) that is on septic. To my knowledge it has never been pumped or maintained in any way, but has not given any problems in the few months we've been here. I'm not terribly familiar with septic systems - never worked on one or owned one. I intend on putting a new driveway in that I believe is going to be on top of the tank (I've located where my sewer exits and it's right there).
I'd like to uncover the tank and build a cleanout before covering the tank. What is the top of that tank going to look like? I'm assuming it is going to be concrete... ? Is there likely to be plugged access points there that I can build on - or am I going to be creating my own?