6" inside diameter, 12"tall. Not that Tead would know.....
Man... 7 gallons!!! That's enormous.
Recently, I did some testing on a 24" tall 6" round tube. There was some banter about deeper pots not staying wet in the top. The banter claimed 12" was the best target. After my little impromptu testing, I feel in agreement with the banter.
So.... how tall are your 7gals?
7 gallons is the SOIL pots
the 12" x6" cylinder holds 1.4 gallons
The green buckets for everyone else hold 3 gallons each and are a little over 8" deep.
In my green buckets, at only 8" deep, a fan running constantly across the surface of the perlite evaporates 60-80% of the reservoir in 3 days - without the fan most girls use less than 30% of the reservoir in 3 days.
The reservoir in the 12x6" cyclinder is mostly consumed in 3 days, presumably because a 2x6" reservoir is 1/3 the volume of a 2x10" reservoir.
That looks like an example of a slightly clogged hole. I try to keep them completely clear. One blocked hole incident will forever make you touchy about them. Usually I get a small void right behind the hole after a bit of time.
This hole had a strong stream, what you are seeing is the low pressure stream after I set down the bucket, position the phone camera and wait for phone to take the picture.
My watering procedure is to:
A) partially drain the reservoir out the drain hole by tipping the plant at 45 degree angle
B) set plant in plant stand with drain hole above waste water bucket
C) fill plant bucket 1-2" above the hole
D) let it drain (poking the tip of my moisture meter in the hempy hole if I don't get a strong stream.)
Continue to the next plant
. . . partially drain the next plant reservoir by tipping at a 45 degree angle.
. . . replace the first plant in the plant stand with the next plant
. . .