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Mixing + Pouring Concrete
Tools and Materials for 3D Scanning
3D Scanning Class
Thanks for the correction. Don't ask me where I got 33 lbs/cu ft. I must have been thinking of something else and confused myself.
The 15 feet he refers to at the beginning is good for 3/8 line. if you are using 1/2 id go up to about 20 ft and adjust as you make more.