On Jul 8, 1:09*pm, wrote:
On Sun, 8 Jul 2012 08:29:23 -0700 (PDT), Evan









wrote:
On Jul 8, 11:14*am, "Steve B" wrote:
I own a cabin. *I want to install some sort of automatic valve so that when
I shut the water off, all the water in the lines drain out. *Is there such a
thing made?

Steve

No such thing exists...

You have to install a drain valve in close proximity to the
main shut off but between the main and the fixtures and
then go around and open the valves on each fixture supplied
by the plumbing to get all of the water out of the lines...

Don't forget to pour Propylene glycol in the drain traps as
those can freeze and cause leaks too...

*There IS such a thing as an automatic drain valve. Commonly used in
sprinkler systems.
Flomatic also makes one for domestic water systems. The Flomatic model
70 will likely do your job and they are reasonably priced.

Then there are the Ogontz antifreeze valves that are temperature
actuated and drain when the temperature approaches freezing.

The sprinkler system valves are quite commonly used in "seasonal"
trailers andcabins.

Sprinkler System valves are not approved for potable water
systems... Also there is nothing that can "automatically"
drain a plumbing system with one device or valve, without
also installing "automatic" valves which open at the high
points on each branch of the piping to admit air and allow
the pipes to drain...