You can mount gate valve in any direction you of your choosing

However up side down if you water carry sediment in few years you may

Get some problem opening and closing other then that I do not see any
problems.




"Red Green" wrote in message
...
Use ball valves.

OK, now that that's out of the way...

I Googled about installing them upside down like in a basement. Saw pros &
cons. Mostly about it promotes sediment collection messing up the
operation. The ones I'm using are 1/2" & 3/4", one hot and one cold. There
are no flow direction arrows on them.

What's the feel from you folks on upside down installation from actual
experience?

Red...