Plans for hand dredge?

[calisdad]

You all seen them. Those pvc/abs contraptions that suck sand and gravel from creek bottoms. I like the one that discharges directly into a bucket via a hose but I don't fully understand the flapper valve system and what stock plumbing part they use. Does anyone have a link or plans that I could follow so I could build one?

thanks in advance-
Calisdad

 

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[Rebel73153]

There are some videos on You Tube that show how. Just do a search for Hand Dredge or Hand suction dredge.

 

[Goodyguy]

You all seen them. Those pvc/abs contraptions that suck sand and gravel from creek bottoms. I like the one that discharges directly into a bucket via a hose but I don't fully understand the flapper valve system and what stock plumbing part they use. Does anyone have a link or plans that I could follow so I could build one?

thanks in advance-
Calisdad

I built mine using two of the sump pump flapper valves from Lowes. I did have to modify the discharge check valve so it would not get clogged with sand and gravel and stick open. http://www.lowes.com/pd_141731-1564...L=/pl__0__s?Ntt=check+valve&page=2&facetInfo=

Or you can get everything you need at: http://www.gold-n-sand.com/#/pump-diy-kit/4536600563

Just the check valves and suction valve leather: http://www.gold-n-sand.com/#/spare-parts/4540110127

 

[kuger]

I know it is ridiculous,but I recall hearing that there was some grief given at one time,for using these?I dont know....I know what I would say,but just beware

 

[calisdad]

Thanks GG and kugar. I plan to be aware, remote and quiet.

 

[kuger]

Thanks GG and kugar. I plan to be aware, remote and quiet.

 

[Goodyguy]

Thanks GG and kugar. I plan to be aware, remote and quiet.

According to my sources It is legal for use in California because it is non-motorized and therefore not subject to SB 670
Discretion is always the best policy in any case.

http://goldsucker.com/blog/?p=24

From Mark Stopher

It is DFG’s view that operation of your hand powered dredge is not a
violation of SB 670. Although you propose to operate it in a live
stream, and it does rely on a vacuum to remove material from the bed of
the stream, Fish and Game Code section 5653.1(d) states ” This section
does not prohibit or restrict nonmotorized recreational mining
activities, including panning for gold”.

While a portion of the Code arguably applies to your proposed actions,
the quoted subsection provides an exception for nonmotorized dredging.

Mark Stopher
Environmental Program Manager
California Department of Fish and Game
601 Locust Street
Redding, CA 96001

voice 530.225.2275
fax 530.225.2391
cell 530.945.1344

 

[kuger]

Thanks G.G...in that case I wouldnt hide at all....temp them!Up until last year the law here didnt even know what a dredge was!!