Hole or pipe size is not the only factor that determines flow of cubic feet per minute. The other factors are presssure and resistance.
Pounds per cubic foot of volume and used to weight the two do not compare.
1 cubic foot per minute equates to about 0.0283 cubic meters per minute.
A cubic foot per minute is a measure of flow whereas a litre is a measure of volume. The two measure different things and so there is no conversion between the two without additional information.
One cubic foot per minute = 7.481 US gallons per minute.
what size is the cubic feet
Units of density are mass per unit volume. Unit volume might be a cubic centimeter or a cubic foot, for example. Whatever the size of your sample, a cubic foot of it is always a cubic foot, and the mass of that cubic foot will always be the same.
None. A gallon is a measure of volume whereas a cubic foot per second is a measure of flow-rate. The two measure different things and, according to the basic rules of dimensional analysis, conversion from one measure to the other is not valid.
A 1.5 cubic foot per second flow of water equates to 2,592 cubic inches of flow per second.
In plumbing, a Fixture Unit (FU) is equal to one cubic foot of water per minute. A Fixture Unit is not a flow rate unit but a design factor. This is roughly 7.48 gallons per minute, or 28.3 liters per minute.
The flow rate in cubic feet/second is (3*1.5*3) = 14.5 cubic ft/sec. According to Google, there are 6.229 Imperial gallons or 7.481 US gallons in 1 cubic foot. Therefore, the flow rate is 90.32 Imp gallons/sec or 108.47 US gallons/sec. If this many gallons flow per second, then (90.32 x 60) = 5419 Imp gallons flow per 1 minute, or equivalently 6508 US gallons per minute.
Assume 1/4 cubic foot per minute. Therefore 36 cubic feet x 4 minutes equals 144
7-1/2 US gal/min = 1 cubic foot/min