From experience, I lived with a well and a septic most of my life. My
parents house (of which I spent 20 years) had a leach field and septic that
lasted the entire time they had (from 80-02) and is still without problem.
My parents visited the ole homestead a couple of months ago and the owners
didn't say anything about it. But I can remember having the tank pumped at
least three times, with third being unnecessary, we had a back up and
thought the tank was full, turned out only to be a clog between the house
and the tank. My dad did use RID regularly and had rles about what was to go
into the tank. My mom didn't use alot of bleach, cause dad said it would
kill the bacteria. I drove my Toyota across the leach field, Hey I didn't
know! But when pop got home and found my truck in the back of the house he
knew there were only two ways of getting there. I sure has hell didn't want
to get my truck dirty going through the access road though. Driving the
truck over it never caused any problems to the field but you can bet I never
did that again. The truck did get dirty on the way out though. I'm not sure
what problem a severe impact of a tree falling on it would pose, but I would
be safe and top the tree trying to lose as much weight as possible.

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