Roger Mills wrote:
In an earlier contribution to this discussion,
The Medway Handyman wrote:

Stephen wrote:
On Thu, 30 Jul 2009 13:05:21 +0100, Bob Minchin

You are correct, there is a tiny reduction. However the sewage
charges are still more than the fresh water charges. I appreciate it
all costs money, but I would have thought it would cost more to make
water potable than treat sewage?

Its the same thing surely? IYSWIM


Not exactly, I hope! Hopefully the treated sewage gets diluted
somewhat before re-entering the system to be made potable.

It does and to answer TMH's comment, the number of stages of treatment of
raw water and sewage are comparable. The energy involved in treating sewage
is often more than that for potable water. Also, the conveyance of sewage
and the costs of disposing of screenings can be much greater than that for
distributing water.