"A hand dredge is basically a pump that lets you suck up material from places you can't otherwise reach — under rocks, deep in cracks, down where the gold's been hiding since the last flood."
A hand dredge is the heavyweight of the hand-suction family: a 2-inch PVC barrel, a plunger on a long rod, and a proper wide nozzle. Same operating principle as the sniper dredge, but scaled up for volume. Where the sniper is a precision instrument for picking a single crack clean, the hand dredge is a production tool — it moves serious material, fast, with no motor and no fuel.
That "no motor" part is the whole reason this tool exists in the modern era. Motorized suction dredging is heavily restricted or outright banned across much of the country, and every bit of the Northeast has rules about it. A hand dredge gives you a meaningful fraction of a dredge's material-moving capability while staying in the hand-tool category — where the local rules allow it, which you must verify. More on that below, because it genuinely matters.
These two tools look similar and get confused constantly, including by the vendors selling them. Here's the honest breakdown so you build the right one first.
| Sniper Dredge (Nugget Sucker) | Hand Dredge | |
|---|---|---|
| Pipe | 1½" PVC | 2" PVC |
| Nozzle | ~5/8" ID × 6" | 1" ID × 8.5" |
| Length | ~30" | ~39" |
| Weight | ~2 lbs | ~2–3 lbs |
| Best at | Tight cracks, precision, picking a single crevice clean | Volume, wider crevices, under-boulder material, sluice feeding |
| Effort | Easy all day | Real work underwater |
| Northeast fit | Excellent — our gold is fine, our cracks are tight | Good — better where you've got wider crevices and packed gravel |
| Build first? | Yes, if you're new | Yes, if you already snipe and want more throughput |
These are the published specifications of hand dredges that working prospectors buy. Build to these numbers and you're building a proven design.
| Dimension | High Plains Nugget Sucker | Our DIY Target |
|---|---|---|
| Pipe size | 2" PVC | 2" Sch 40 PVC |
| Total length | ~39" | 36–40" |
| Vacuum chamber | 2" × 25" | 2" × 24–26" |
| Nozzle | 1" × 8.5" | 1" ID × 8–9" |
| Handle | High-density plastic ball handle | PVC tee or ball knob |
| Weight | 2 lbs | 2–3 lbs |
| Motor | None — hand operated | None |
| Part | Spec | Notes | Cost |
|---|---|---|---|
| Barrel | 2" Schedule 40 PVC, 26–28" | Cut long, trim to fit. Clear PVC is a nice luxury if you can find it — watching gravel come up is genuinely useful feedback. | $7–9 |
| Nozzle | 1" PVC pipe, ~9–10" (finishes ~8.5" exposed) | 1" Sch 40 has ~1.03" ID — right on target. | $3 |
| Reducer | 2" × 1" PVC reducer bushing | Joins barrel to nozzle. Dry-fit before cementing. | $2–3 |
| Pull rod | 3/8" stainless all-thread, ~34" (or 1/2" PVC pipe) | Go 3/8" here, not 1/4". A 2" plunger under water generates real force and will bend a thin rod. | $5–6 |
| Plunger | Rubber disc(s) ~2" to match pipe ID, between washers | Toilet plunger cup, rubber sheet stack, or O-ring-on-disc. See the sniper dredge guide for the full comparison. | $2–4 |
| Handle | 2" PVC tee + stubs, or a ball knob | Commercial units use a high-density plastic ball. A PVC tee works fine and costs a dollar. | $1–3 |
| Rod guide cap | 2" PVC cap, drilled center | Friction-fit or screwed, never glued — you need service access to the plunger. | $1–2 |
| Check valve (optional) | Rubber flapper + rigid perforated disc, or a 1" PVC check valve | See the check valve section. Big performance gain, moderate extra work. | $0–8 |
| Hardware | Stainless/brass nuts + washers, PVC primer + cement, sandpaper | Stainless only. Non-negotiable in creek water. | $3 |
Cut 2" PVC to ~26". Square cuts. Then sand the entire inside surface smooth — wrap fine sandpaper around a dowel or a broom handle and work the full length. Take down the mold seam. A 2" plunger has a lot of surface area riding that wall, and any ridge will score the rubber and kill your seal. This step takes ten minutes and doubles your plunger's life.
Assemble barrel, reducer, nozzle, plunger, rod, and cap with no cement. Work the plunger up and down the full stroke. Check the plunger doesn't hit the reducer at the bottom of its travel, and that it doesn't pull past the guide cap at the top. Adjust lengths now, while you still can. Every builder who skips this step regrets it.
Primer, then cement, reducer into barrel and nozzle into reducer. Leave ~8.5" of nozzle exposed. Twist a quarter turn as you seat each joint to spread the cement evenly. Then let it cure fully — read the can, but figure 2 hours minimum before you put any pulling force on it. This tool generates more force than the sniper; a weak joint will fail.
Cut the tip at about 45° and sand every edge smooth, inside and out. The angle lets you work into a crack and scrape material toward the intake. Smooth edges mean you're not slicing your hands or snagging on rock. Some builders cut a shallow V or a couple of small notches in the tip to help break up packed material as they work — worth trying on your second build.
Washer, rubber disc(s), washer, then nuts either side to clamp. Tighten to compress the rubber so it spreads out snug against the barrel wall. Test by hand in the dry barrel: firm steady effort to move it, but not a two-handed fight. The nuts are your tension adjustment forever after — that's why all-thread beats a dowel.
If you're building the valve, now's the time, before the guide cap goes on. Skip it on your first build if you want to get to the creek faster; you can retrofit later.
Drill the 2" cap dead center for your rod — free-sliding but not sloppy. Friction-fit it or secure with a small stainless screw so you can remove it for plunger service. Then attach your handle. Test the ergonomics with wet hands, gripping like you mean it. A 2" barrel underwater takes real pulling; you want a handle you can lean into without tearing up your palm.
Two or three 1/8" holes through the barrel wall near the handle end, above the plunger's top of stroke, to vent trapped air. Then drill a small hole through the handle and run a paracord lanyard. PVC floats. A 39-inch tool going down the creek at walking speed is a bad afternoon.
Fill a five-gallon bucket with water, pea gravel, and sand. Pull. You want a solid slug of material coming up the barrel. Push to eject. Do this twenty times and watch for: plunger slipping, joints weeping, rod flexing, valve sticking. Fix it in the driveway, not two hours from home.
Here's the problem with a plain suction tube: on the push stroke, some of what you just sucked up gets pushed back out the nozzle. You pull material in, then you shove part of it back where it came from. Annoying, and it costs you real productivity.
A check valve fixes this. It's a one-way gate between the nozzle and the chamber: material flows in on the pull, and the valve slams shut on the push so nothing goes back down the nozzle. Instead, the material exits through a discharge port up near the top, or you simply lift the tool out and pour it. The result is that every single pull stroke banks material.
The hand dredge rewards a different approach than the sniper. You're not picking one crack clean with surgical precision — you're processing volume out of productive ground.
This tool is named "dredge," and regulators do not always draw the neat line between motorized and hand-powered that we'd like. Before you use one anywhere:
The Skookum code: prospecting is free and legal on public land, and we intend to keep it that way. One phone call to the state agency before you use a hand dredge in new water, and you never have to worry. We don't go out of our way to ask permission to pan a public creek — but we don't hand anybody a reason to shut our creeks down either.
| Problem | Cause | Fix |
|---|---|---|
| Very hard to pull underwater | 2" barrel moves a lot of water — this is partly normal | Loosen the plunger slightly. Shorter, quicker strokes. If it's genuinely too much, build the 1½" sniper instead. |
| Weak suction | Plunger worn or not sealing | Tighten the clamp nuts to spread the rubber. Replace the disc if scored or torn. |
| Material pushes back out the nozzle | No check valve — this is the expected behavior | Lift the tool clear of the hole before ejecting, or build the flapper valve. |
| Check valve jams open or shut | Grit in a spring-style valve, or flap too stiff/too floppy | Switch to a simple flapper. Increase open flow area. Flush after every session. |
| Rod bending | Rod too thin for a 2" plunger's force | Step up to 3/8" stainless all-thread. Don't yank on a jammed nozzle. |
| Nozzle jammed with a rock | Sucked a cobble that won't pass | Push-eject hard to blow it back out. Clear cobbles by hand first. A 1" nozzle passes a lot but not everything. |
| Joint blew apart | Insufficient cement cure time | Cut out, re-prime, re-cement, full cure. This tool generates real force. |
| Hardware seized with rust | Plain steel hardware | Stainless or brass. Rebuild the plunger assembly. |
| Boulder shifted while working under it | Undermined it by removing supporting material | Stop. Get clear. Assess before continuing. Never undermine a rock you couldn't survive. |
| Tool floated off | PVC floats, no lanyard | Paracord lanyard to your wrist or float. Every time. |
"Made by gold prospectors for gold prospectors." Every outfit below has creek water in its boots.
2" PVC, ~39" total, 2" × 25" vacuum chamber, 1" × 8.5" nozzle, high-density plastic ball handle, 2 lbs, around $50. Their own copy says it plainly: "Made by gold prospectors for gold prospectors." They also offer a Backpacker version sized down for a pack. This is the unit whose dimensions this whole build guide targets. highplainsprospectors.com
Gold-N-Sand has been manufacturing effective, low-cost, ergonomic and environmentally safe prospecting tools for years. The Quick Sniper is a non-motorized hand tool made for pulling gold out of deep cracks and crevices — that's its entire design brief. Available through independent dealers such as Prospecting Supplies.
Keene has been at this longer than most of us have been alive — family-owned since 1955, and one of the world's leading manufacturers of portable mining and prospecting equipment. When you outgrow hand tools and start looking at serious gear, this is a name you can trust. keeneeng.com
Based in Georgia, GoldHog makes 100% of its equipment in the USA across three facilities, holds 20+ patents, and as they put it: "We don't make toys." Their EPDM rubber sluice mats are heavy-duty, function from 200°F down to -20°F, and carry an expected lifespan of 10+ years in standard sluicing. Not a hand dredge maker, but the outfit to know for what you do with the material after you suck it up. goldhog.com
Founded by Mike Kuykendall — mining and developing products for well over thirty years. The company was "born out of a need for durable prospecting and small scale alluvial mining products," which is the most prospector origin story there is. prolinemining.com
BUILD SPECS
WHERE IT WINS
THE BEDROCK SHEET TRICK
LEGAL
SAFETY
Build dimensions derived from published commercial hand dredge specifications. Photos of our own build coming soon.