"Stan Brown" wrote in message
t...
The county health department says every 2 to 4 years, which seems
like an awfully long time to me. I know when I rented a house my
landlord had the tank pumped every year.

I'm one person, and the tank is 500 gallons. Any guidelines?

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com/
"If there's one thing I know, it's men. I ought to: it's
been my life work." -- Marie Dressler, in /Dinner at Eight/

We pump ours every 3 years (2 people). Every 3 months we add two cakes (or
packets) of yeast in one cup of sugar water, The latter keeps the "beasties"
happy. This all is per the recommendation of the installer and pumper.