Run pump prior to testing?

Beachnut_pa

LifeTime Supporter
Apr 10, 2007
32
0
Valley Forge, PA
#1
I'm curious about this. I usually test my water at about 6:00 pm and my pump starts running for the second period of each day at 4:00 pm. On the weekends, I sometimes test earlier. Should the pump be running for a certain period of time prior to testing?