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Originally Posted by bigben2k
dP can be done the old fashion way; vinyl tubing in a manometer arrangement. Very easy to do (I've done it, ask Thykingdomecome).
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Not really. I tried it once. Don't have high enough wall height for all that tubing. You need like 138" of vertical rise to get 5PSI worth of measurment. That is 11.5 feet. After my bench was setup I only had about 3.5 feet of height for tubing as standard walls are not much higher than 8 feet.
Unless I am doing something wrong.