Can someone tell me where i can find (or just post them) how many gallons per hour the standard sized hole diameters for an overflow will drain. I am specifically looking for: 3/4" 1" 1 1/2" 2" thanks!

Use your mad calculus skillzzzzz! Something like volume of tube times 9.81 for fall time, convert to gallons........blah blah blah

poppins - thanks, i know about the RC calculators..but i want to know specifically what each will do by itself, to my knowledge the RC calculator is for calculating you total drain/overflow turnover garrison - ha..your funny, with a comment like that i know you did not attend high school with me..

backwards RC calc. worked...for those who are curious and for future note (all are approximate, but pretty damn close).. 1/2" - 150gph 3/4" - 350gph 1" - 600gph 1 1/2" - 1325gph 2" - 2350gph 3" - 5275gph wow..3" pipe really dumps!