We're closing on our house friday. It's been empty for about 2 years and I heard through the grapevine that the last owners didn't take care of the septic system and had problems with it backing up. (this was a foreclosure property-so, no disclosure papers). Now, my questions: What steps do I need to take to make sure we don't have any problems?(I've never had a place with septic before but it seems to me after 2 yrs that things should be pretty much settled with little backup problems) What kind of regular maintance do I need to do to keep it in good working order? The house had been winterized with the pipes apparantly being drained and antifreeze poured in. Will this cause problems with the septic and anything special I need to do because of this??