Unexplained water pressure drops
Hi All,
I have noticed since turning my sprinkler system on for the summer that there is a significant water pressure drop in the house when I'm watering the lawn (usually in the morning while I'm taking a shower). I've lived in this house for 9 years and aside from the occasional maintenance nothing significant has changed and I've never encountered water pressure problems like this. I don't have any data from previous years but here are the current details:
- static water pressure is 75 psi (city water supply)
- bucket test showed water volume of 6 gpm
- water pressure while watering lawn is 20 to 30 psi (regardless of zone and sprinkler
Heads won't even come all the way up out of the ground)
- water pressure after a toilet flush is 58 psi
- water pressure with the tub filling is 55 psi (cold water)
- water pressure running a new water saver shower is 68 psi
The 6gpm seems low to me. At the moment I'm suspecting a volume supply issue coming into the house but wanted to do a sanity check before calling the water department. Any other thoughts out there?
Thanks,
Jim