Hi all! I'm buying a 1.5 acre property with a septic system but don't understand them beyond the 'don't build on top of them' and 'don't flush any junk down them'. Is anyone well versed enough to tell me what this diagram means as it pertains to what I should do regularly to promote the longevity of my system and how often (if?) I need to pump it/have it serviced? Thank you in advance!