hey everyone. im a Gardener from Los Angeles County. i do maintenance and sprinkler irrigations. but there are always questions. and alot more to lear. today a customer came out and said my sprinkler are not working properly. the lawn was pretty dry cause she had turned it off. 1st she heard a rattle sound of a pipe at midnignt. i told her it might of just been the water pressure kicking in when the sprinklers turned on. 2nd. i tested the control box and all ten valves were making a rattle sound...
