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how do you do the math? i'm not putting my finger in your eye, but i don't understand. ace sewer posted a formula last year. hp = gpm x psi v .0005833. does that work? if not what is the formula? i know that is for a 100% efficient system, which in reality does not exist. do we have a huge power loss? i am planning on doing what appletondrain did, so i would like to know how to figure this out. thank you. breid
how do you do the math? i'm not putting my finger in your eye, but i don't understand. ace sewer posted a formula last year. hp = gpm x psi v .0005833. does that work? if not what is the formula? i know that is for a 100% efficient system, which in reality does not exist. do we have a huge power loss? i am planning on doing what appletondrain did, so i would like to know how to figure this out. thank you. breid
I'm not sure Ace's formula takes pressure loss from the hose into consideration. I'm sure more than one person has been tripped up buying nozzles sized for their pump output vurses the output at the nozzle end of the hose...
how do you do the math? i'm not putting my finger in your eye, but i don't understand. ace sewer posted a formula last year. hp = gpm x psi v .0005833. does that work? if not what is the formula? i know that is for a 100% efficient system, which in reality does not exist. do we have a huge power loss? i am planning on doing what appletondrain did, so i would like to know how to figure this out. thank you. breid
i believe those #'s are for an electric motor and not a gas engine.
the #'s that are realistic for gas is hp= gpm x psi / 1100.
so 5.6 x 3500 = 19,600
19,600/ 1100 =17.818 h.p
keep in mind that is the max h.p for an engine all out. doesn't take into account pressure loss from friction and h.p loss from altitude.
pr. thank you. that is an optimal situation where everything has to be spot on. that ain't likely. printed that out. my other formula wasn't working. thank you. breid
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