wrote:

He can't help you, but I might... I had the same problem the other
night. Let the zone run for 1/2 an hour until a mound appeared in the
grass. Stabbed my foot into it and out gushed a bunch of water.
Guess who gets to splice a poly pipe tonight? Arrrghh!

I bypassed the mound phase, and went direct to water gushing out after they
came on but nothing came out for a few minutes...... Arrrrghhhh!