duke-one wrote:I know this is an older thread but I thought of this: for technically competent HB'ers, machines not on all day this would be simpler: just get a tap on the load side of the main switch and neutral (or what ever the power situation is) have that open a normally closed solenoid at the water supply point. This way it is just one component, machine off water off, machine on water on.

Agreed, that's what good conversion kits do:


From Converting a pourover espresso machine to direct connect

The normally-closed solenoid serves double-duty as a backflow preventer, which is required by most plumbing codes. Unfortunately this doesn't cover all cases. For example, some have reported that the lever was left in the up position on their plumbed-in espresso machine with a timer delay:

Ben Z. wrote:We did have a big mess when somehow the brew lever on Elektra got activated at night while the machine timer was off. When it turned on at 6:00, it quickly filled the bucket Elektra was draining into and then began covering the kitchen with warm water. Luckily we had tile floor and cleanup wasn't too bad.

A real problem if the machine doesn't have a plumbed-in driptray!

What I was suggesting was the solenoid at the wall, the first thing after the house plumbing and a manual shut off. It would then cover any possible leak in filter, plastic interconnects etc or the machine itself.
KDM