Septic system previous failure?

[James Runkle]

Hello.

I am a newbie here. I am purchasing a home in Center Point Alabama, and the recent invoice for septic pumping stated there were signs of a previous failure. However, the system at the time of pumping was in good working condition. I talked to the service company and was told i could have it inspected for about $500 but better to just wait and see what happens, because the repair would be about $1000 if needed, and that includes inspecting it. 

Would appreciate any advice.

Thanks.