Eddy Bentley wrote:
We have a reasonably-sized septic tank embedded in the front garden and
we understand that the previous owner had it cleaned every year, at a
cost of about �120. There has been a suggestion that this annual
cleaning is a bit excessive. On the other hand, I have read that if the
solids mount up and leave the tank and move into the soakaway area then
the soakaway area becomes clogged and you then have to build a new
septic tank at another (clean) spot - which is a real bother and a
considerable expense. So, clearly, regular cleaning is worthwhile.

But how often is regular for a two-person household?

Any ideas?

Thanks,
Eddy.

Depends on the size of the house. We are rated to have a 6 person tank,
but there's two of us and 4 cats..ask not why a lot of cat**** goes down
it..and once every 4-6 years seems about right.

But ours is a modern biodisc. I never cleared the old septic tank ever
in 7 years. It whiffed anyway. It probably could have used a flush.