How To Make A Monster 4" Manual Dredge Suction Pump

[Goldgrabber]

Here's the other manual hand dredge video describing how I've made a Monster 4" suction pump which will collect twice as much material as the standard 2 1/2" pump per draw. There's a couple of bits just out of shot when I point to them, I underestimated it's size when filming haha but it can all be seen at various angles throughout and I don't have time to make another. Enjoy:

 

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[GoldpannerDave]

Here's the other manual hand dredge video describing how I've made a Monster 4" suction pump which will collect twice as much material as the standard 2 1/2" pump per draw. There's a couple of bits just out of shot when I point to them, I underestimated it's size when filming haha but it can all be seen at various angles throughout and I don't have time to make another. Enjoy:

I like how you used a tennis ball in the 2 1/2" and a nerf ball for the 4 inch to seal them.

 

[Goldgrabber]

Cheers, they're perfect seals in both pipes, as they are compressed with the washers they ensure one of the tightest seals available for this type of pump. People sell these in the UK for over £30 ($45) when you can make 2-3 of them for that price just by buying the bits (or using bits lying around). Glad you like them

 

[KevinInColorado]

Do you have to go to Scotland to prospect? I've heard there is also gold in Wales but it's the property of the crown?