So for the past 2 days lights have been flickering in my house.
Called power company all good from transformer to meter.
While standing by panel i noticed a hum. It's occurring every 6:XX mins. This is when the lights dim.
If i turn off pool sub panel it stops (95%) sure, gonna try one more time just heard it again.
My SWG is set to run 25% currently, and i'm only using one pump timer, it is set to run from 8-5:30 or 9.5 hours. I just checked and it says the SWG is off because the % was met. So it starts running at 8 am and turns off somewhere around 10:30 vs. 25% of each hour run.
I'm kind of answering my own question i guess, it shouldn't be the SWG.
But what else pool related could cause a breaker box to hum every 6 mins?
(it just happened again and i could feel the vibration in the breaker for the pool sub panel)