Quote:
Originally Posted by ajbrown
Some time in the past I discovered an interesting issue at my house.
For reasons I cannot recall, I woke up at 4 AM. While up I decided to check out my sprinklers.
They were spraying very weekly. Not far enough to get proper coverage.
What I learned was that the pressure can change quite a bit for reasons I never investigated. I changed the time so they now end at 7AM and pressure is great.
I put a pressure gauge in the box (as I was curious) and see quite a variance of static pressure depending on time.
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Interesting ..... I believe you are in an area that uses reclaimed water for irrigation as do the golf courses that typically water over night. Might explain the drop in pressure at night because those golf course sprinklers are like fire hoses!!