"Family Guy" wrote in message
ups.com...
We recently purchased a house with an irrigation system. I have a
question. Is it okay to turn off the the water (at the main valve)
after each use? Will it do any harm?

No harm that I ever heard of - if the valves corrode in the air, they will
corrode in the water.

Here, each line is to have vacuum breaker, and so they drain out anyway.

And since the lines are mechanical parts, you know that someday some part is
going to fail and leak... better for that to happen when you are looking
at it.

fwiw


Thanks.