- Joined
- Mar 8, 2015
- Messages
- 157
- Reaction score
- 321
GOLD PROSPECTING HAND CREVICE PUMP - ADAPTS DIRECTLY TO STD 50 MM YABBIE PUMP
Yes, that's right, I have decided to produce a few units of the robust, serviceable and most importantly, very effective hand operated crevice pump device that I have developed over the past 18 months for my own use. I have had a lot of interest from prospectors I have shown the device to in the field, it does what it's meant to do so, given the interest and its effectiveness, I want to see what response there is and the demand that may exist.
Let me tell you about it: It adapts snugly and securely directly to your standard 50 mm yabbie pump with a single stainless hose clamp. Leaves crevices and bedrock clean as a whistle, just like your Mum's Hoover cleaned the Axsminister !
Place the nozzle into the crevice, pull the yabbie pump handle up and the water/gold bearing gravel slurry 'charge' is drawn into the barrel of the yabbie pump. At the same time, the vacuum created in the outlet hose is sealed off by a simple check valve.
Push the handle down and the charge is expelled and directed into the outlet hose via the other simple flap/reed valve and then into the hose that is connected to your catchment system. Pull the yabbie pump handle up again and cycle repeats.
Very easy & efficient to use, works at any angle, no tilting or removing the nozzle after every pull of the handle to empty the yabbie pump into a bucket.
Made from strong & non-corroding materials: PVC; stainless steel; brass; silicone; and high-density polyethylene components. And it's light weight if you want to get into those deep gullies & remote creeks with a simple but effective kit in a backpack: Pan, my crevicing devise, your yabbie pump, short hose and bucket.
I have been prospecting for 30 years and about two years ago, after being disappointed by the other hand crevice pumps on sale, developed my own. No reinventing the wheel, but after 18 months of trial and improvement under demanding and tough conditions in the New England and Central West districts and; a lot of interest from other prospectors I have demonstrated my device to, I am pleased to share this effective hand pump attachment to the gem fossicking and gold prospecting fraternity.
Yes, I have done all the hard stuff & homework! Parts and materials alone cost me $38 before I start the lathe/machine work and assembly-2 hours for each device. So, for $89.99 you're getting a well sorted, robust bit of kit with all the teething problems ironed out.
It is totally & easily serviceable in the field with a screw driver, 8 mm spanner & 4 mm Allen key. Has two nozzles: The standard 40 mm x 250 mm that does about 90 % of crevices and under and around very large rocks in creeks and rivers and; the 20 mm x 250 mm nozzle for those tighter & narrowed hiding places you want to clean out.
Outlet adapts directly to a 40 mm barb coupling which then connects to most standard pool cleaner hose sections/hose of your choosing. This makes it ready to pump directly into your sluice/high-banker/or, collector bucket with lid set up (I'm sure you'll have this stuff already or, a quick trip to the hardware/irrigation store will get you what you need-see photos for set up).
Full but simple instruction/facts sheet provided. Photo 1 is what you get, the other photo is to demonstrate the simple and easy set up through a pool hose and into a sealed and vented bucket.
Yes, that's right, I have decided to produce a few units of the robust, serviceable and most importantly, very effective hand operated crevice pump device that I have developed over the past 18 months for my own use. I have had a lot of interest from prospectors I have shown the device to in the field, it does what it's meant to do so, given the interest and its effectiveness, I want to see what response there is and the demand that may exist.
Let me tell you about it: It adapts snugly and securely directly to your standard 50 mm yabbie pump with a single stainless hose clamp. Leaves crevices and bedrock clean as a whistle, just like your Mum's Hoover cleaned the Axsminister !
Place the nozzle into the crevice, pull the yabbie pump handle up and the water/gold bearing gravel slurry 'charge' is drawn into the barrel of the yabbie pump. At the same time, the vacuum created in the outlet hose is sealed off by a simple check valve.
Push the handle down and the charge is expelled and directed into the outlet hose via the other simple flap/reed valve and then into the hose that is connected to your catchment system. Pull the yabbie pump handle up again and cycle repeats.
Very easy & efficient to use, works at any angle, no tilting or removing the nozzle after every pull of the handle to empty the yabbie pump into a bucket.
Made from strong & non-corroding materials: PVC; stainless steel; brass; silicone; and high-density polyethylene components. And it's light weight if you want to get into those deep gullies & remote creeks with a simple but effective kit in a backpack: Pan, my crevicing devise, your yabbie pump, short hose and bucket.
I have been prospecting for 30 years and about two years ago, after being disappointed by the other hand crevice pumps on sale, developed my own. No reinventing the wheel, but after 18 months of trial and improvement under demanding and tough conditions in the New England and Central West districts and; a lot of interest from other prospectors I have demonstrated my device to, I am pleased to share this effective hand pump attachment to the gem fossicking and gold prospecting fraternity.
Yes, I have done all the hard stuff & homework! Parts and materials alone cost me $38 before I start the lathe/machine work and assembly-2 hours for each device. So, for $89.99 you're getting a well sorted, robust bit of kit with all the teething problems ironed out.
It is totally & easily serviceable in the field with a screw driver, 8 mm spanner & 4 mm Allen key. Has two nozzles: The standard 40 mm x 250 mm that does about 90 % of crevices and under and around very large rocks in creeks and rivers and; the 20 mm x 250 mm nozzle for those tighter & narrowed hiding places you want to clean out.
Outlet adapts directly to a 40 mm barb coupling which then connects to most standard pool cleaner hose sections/hose of your choosing. This makes it ready to pump directly into your sluice/high-banker/or, collector bucket with lid set up (I'm sure you'll have this stuff already or, a quick trip to the hardware/irrigation store will get you what you need-see photos for set up).
Full but simple instruction/facts sheet provided. Photo 1 is what you get, the other photo is to demonstrate the simple and easy set up through a pool hose and into a sealed and vented bucket.