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Old 11-12-2008, 05:31 AM
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Quote:
Originally Posted by Jason McK View Post
Basically if you have a 300GPH pump you then guess at the ball valve handle position 1/2 closed whould put you at 150GPH 3/4 closed would be 75GPH

J
I didn't think it was that easy because, well, it's a ball and the hole in the ball has a curved edge and...ya, that. In other words, isn't it disproportional (is that a word?) because of the spherical properties of the hole? I wouldn't even begin to pretend I know how to calculate it, but I digress. If other folks are having success guessing, that's what I'll do to. I like the trickle description. That helps.

Thanx and cheers,
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