David Hill wrote:
"..........What's a water computer doing?
Turning the water of and off...."

And I thought that was a Tap.

You could make up a system with a solenoid valve to control the flow of
water and link it to a 24 hour plug in time clock (I bought 3 timers for
around £10.00)

Yes, if you have mains electricity available and you are a competant
D-I-Y er then a mains operated solenoid valve (washing machine ones
are very cheap) and a plug in timer is *much* cheaper than those
'irrigation computers'. Do be sure that you do the electrics properly
though (correctly IP rated box for the solenoid valve etc.).

--
Chris Green )