Typhoon !

[Buccaneer]

Originally Posted by StirCrazy

Rasta, did the dealer tell you they woulden't work or woulden't work as designed? they should develop a venture effect even with a little amount, but for my self I was sceptical about how much they would develop with less than the recomended amount of flow. would be interesting if we could figure out some way to measure it befor you get the new pumps so we can see how much of a difference they make.

Steve

When I talked to Ken on the phone before I ordered he was insistent that a pressure rated pump is required I guess because of the back pressure created when the eductor is reduced to 3/8" orifice ? ... he worked it out that a Mak4 with 2 eductors would be more powerfull than with 1 ( 7 PSI with 1 eductor and 6PSI each for 2 eductors ) ... not sure how he came up with the math as he was working from a graph of head loss for that type of pump ... so all I did was put 2 eductors on each of my Mag18's as I would have done with the Mak4's

Does anyone know how to measure the output velocity of a pump ? ... maybe if Jonathon is reading this he can bring over his Mak4 and we can do a quasi-test with Mag18 on one end and Mak4 on the other ?

Cheers