spaghettigold
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- Oct 14, 2013
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- #1
Thread Owner
hi all
In many places where i like to dredge there,s not enough drop to gravity dredge,Sometimes i can correct that by building dams but when there,s not enough natural drop on the spot to begin with,the dams must be build high ,which then creates a deep pool where i want to dredge .Since i ,m not allowed to use motors i can,t use compressors for diving,deep pools are a limiting factor.
I was thinking to build a maybe 2 feet high dam where i want to dredge to have a basic suction and then build a second higher dam somewhere else ,where i can get 6 feet drop to feed a power jet . Will this slightly increase my suction in the already with 2 feet drop working 8 inch suction hose to a good point? Should the hose that feeds the power jet have a certain diameter? Is bigger better?
In many places where i like to dredge there,s not enough drop to gravity dredge,Sometimes i can correct that by building dams but when there,s not enough natural drop on the spot to begin with,the dams must be build high ,which then creates a deep pool where i want to dredge .Since i ,m not allowed to use motors i can,t use compressors for diving,deep pools are a limiting factor.
I was thinking to build a maybe 2 feet high dam where i want to dredge to have a basic suction and then build a second higher dam somewhere else ,where i can get 6 feet drop to feed a power jet . Will this slightly increase my suction in the already with 2 feet drop working 8 inch suction hose to a good point? Should the hose that feeds the power jet have a certain diameter? Is bigger better?
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