On Wed, 5 Dec 2007 00:19:40 GMT, brian mitchell wrote:

Rainwater is a no, no. The volumes of even a small shower on a decent
sized roof will flush a septic tank through far to quickly...

What is the ill effect of that?

Well apart from the fact the muck doesn't stay in the tank long enough to
acted on by the bacteria effectievly the sludge gets washed into the
soakaway blocking it up...

--
Cheers
Dave. pam is missing e-mail