"Peter Crosland" wrote in message
...
Thanks for that John. I could well be wrong. The point is still valid in
that it is for a relatively short time. My guess is that all septic tanks
will have to be replaced with less polluting systems within the next
fifteen
years


Since some have fifty years of life left in them I don't see how they'll
enforce this. Also if they won't allow reed beds and powered solutions
aren't appropriate where you live, there isn't much left other than a septic
tank.