Foam brush three bays too. I threw it out as example 3/4 goes below zero my notes are at the wash..
I only go that high if it's gonna be below a certain degree level.. Most this winter it's been at a 1/4gpm behind weepmizer. The flow meter was a nice addition to confirm the flow and learn what's needed without overdoing it. Plus with the weep mizer that 1/4gpm only runs for like 15sec a minute or whatever it mizes for what the temp is, you know. It controls to full flow based on temp. Like 1/2pgm only goes full on below like 5° otherwise it's mizered out. So I'm never flowing that amount all the time. Plus we have very very heavy winds here at this rual location all the time so wind chill factors in.
Weepmizer really saves the best, and the flowmeter gives you a number to go by to say yeah it didn't freeze last night at this degree, with wind chill, with this flow, with the weepmizer settings.