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Gold Prospecting
Do It Yourself (DIY) Projects
Crevis hand pump
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<blockquote data-quote="limpalot" data-source="post: 187215" data-attributes="member: 5773"><p>I use the stainless on the outside of the bottom or inlet vale, what goes through it will go through the outlet valve. I have reduced the end of the inlet pipe and put small bolts to limit the gravel size. You do get the odd bit of gravel up the inlet pipe, just screw off and empty. WHOLE LOT CAN BE PULLED APART IN THE field. Bloody caps, heat gun work well on plastic, and also on the glue ,if you stuff up.Used a bit of 1/4 rubber for the plunger, Leather wind mill pump bucket are the best, but pricey. found a shock absorber washer to just fit 50mm pipe and keep rubber rigid.put brass 90 elbo at top to let air and water out.first time it shot me in the nuts very cold. Made an extension for the plunger, 1m pipe and rod, can suck from 2m down.</p></blockquote><p></p>
[QUOTE="limpalot, post: 187215, member: 5773"] I use the stainless on the outside of the bottom or inlet vale, what goes through it will go through the outlet valve. I have reduced the end of the inlet pipe and put small bolts to limit the gravel size. You do get the odd bit of gravel up the inlet pipe, just screw off and empty. WHOLE LOT CAN BE PULLED APART IN THE field. Bloody caps, heat gun work well on plastic, and also on the glue ,if you stuff up.Used a bit of 1/4 rubber for the plunger, Leather wind mill pump bucket are the best, but pricey. found a shock absorber washer to just fit 50mm pipe and keep rubber rigid.put brass 90 elbo at top to let air and water out.first time it shot me in the nuts very cold. Made an extension for the plunger, 1m pipe and rod, can suck from 2m down. [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Crevis hand pump
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