"Travis Jordan" wrote in message
...
SteveB wrote:
I have been poo pooed on this, but anyone who has used it know it
works.

Do you need to have water in the sprinkler lines, or will it work when
they are dry?



It is impossible to get the water out unless you blow it out. I think it
can stay in there for years, what with rain adding to it.

I tell ya, I have used it for decades. It's free, isn't it?

Steve