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Choose by the water and the setup: For sand and silt dewatering within a 0.28-inch solids limit, compare the electric Tsurumi HS2.4S. It needs a safe 115 V supply and manual supervision. The Champion 100742 and 100743 offer gas-powered hose kits and higher published flow limits, but their solids ratings conflict with a warning in their manuals. Confirm your intended water with Champion before choosing either for debris. None is our recommendation for sewage cleanup or heavy sludge.
Electric option for sand and silt: Tsurumi HS2.4S, a manual submersible pump with an agitator. Check the Tsurumi HS2.4S on Amazon
This guide compares an electric sand pump with two gas semi-trash hose kits. Start with the material in the water, safe power or outdoor engine placement, required flow at the actual lift, and hose connections. A solids rating is not a guarantee that a pump can handle leaves, stones, sludge and sewage alike.
For clean-water jobs, compare purpose-specific options and their flow, lift and depth limits: see our water transfer pump picks for draining tanks and water heaters, or our submersible utility pump picks for flooded floors and window wells.
Trash Pumps Compared
Maximum flow and maximum lift are different limits. They are not available together. Use the maker’s performance data at your required lift; Tsurumi’s approximate curve readings below are not installed-flow guarantees. For Champion, resolve the solids warning before relying on those rated limits.
Scroll sideways to compare all columns.
| Pump | Power | Ports | Flow data | Head (maker) | Solids (maker) | Weight | Warranty |
|---|---|---|---|---|---|---|---|
| Champion 100742 | 212 cc gas | 2 in. NPT | 158 GPM | 92 ft total, 26 ft suction | 1/2 in. | 79 lb | 2 yr; 180 days commercial |
| Champion 100743 | 224 cc gas | 3 in. NPT | 264 GPM | 92 ft total, 26 ft suction | 3/4 in. | 93.9 lb | 2 yr; 180 days commercial |
| Tsurumi HS2.4S | 1/2 HP, 115 V electric | 2 in. NPT discharge | About 53 GPM at low head, 35 GPM at 20 ft (our reading of the curve; listing title: 39 GPM) | About 39 ft at no flow (our reading of the curve) | 0.28 in. | 25 lb | 2 yr, per listing |
Figures from the current Champion 100742 and 100743 operator’s manuals (both revised December 2025) and the Tsurumi HS series spec sheet. Each linked pump was sold by Amazon.com and in stock on October 8, 2026.
Gas or Electric?
- Gas semi-trash pump: higher published maximum flow than the electric option here, but it must stay outside and its intended water needs clarification. Champion says never to run it inside a home or garage, to keep it at least 5 feet from combustible materials, and to operate it on level ground.
- Electric submersible trash pump: it sits in the water, makes no exhaust, and uses an agitator for sand. This model has a lower flow curve and smaller solids limit than the published gas-kit limits here.
How to Set Up a Gas Trash Pump
- Place it outside, level and far from building openings. Keep the suction lift low while maintaining safe outdoor placement. Hose length, size and lift affect output; choose a different setup if the supplied hose cannot reach safely.
- Check the kit and service the engine. Champion includes the suction and discharge hoses, but the engine ships without oil. Use the exact manual’s oil and fuel instructions before starting; prime the pump separately. Match the supplied NPT adapters, seals and hose size.
- Prime it. Fill the pump body with water through the priming cap and reinstall the plug. Champion says never run it dry.
- Use only confirmed, suitable water. Follow the starting instructions and monitor flow. Stop the engine before checking or clearing the intake; do not reach into a running pump or remove a plug while it runs.
- Store it right. Champion’s manual says to drain the pump before storing it for winter, and gives steps for putting RV antifreeze through it to protect it from freezing.
Champion 100742 2-Inch Semi-Trash Water Pump
212 cc 4-stroke OHV engine · 2 in. NPT inlet and outlet · up to 158 GPM · 92 ft total head · 26 ft suction head · 1/2 in. solids · cast iron impeller and volute · self-priming · 12 ft suction and 25 ft discharge hose included · 79 lb · 2-year limited warranty (180 days commercial)
This is a 2 inch gas pump on a frame: you set it outside and run the suction hose into the water. Champion’s manual lists up to 158 gallons a minute, 92 feet of total head and 26 feet of suction head, and solids up to 1/2 inch. The impeller and volute are cast iron, and it comes with a 12 foot suction hose and a 25 foot discharge hose.
It also comes with wheels and a cam lock coupler for the suction hose, per the manual. Champion’s warranty is two years, but the manual cuts it to 180 days for commercial and industrial use and excludes hoses and hose fittings. Champion also says not to pump salt, sludge, sewer, sea or any water containing solid material, which sits oddly beside its 1/2 inch solids rating; see the note above.
- 158 GPM maximum flow, per Champion
- Hoses included, per the manual
- Cast iron impeller and volute
- Self-priming once the housing is full
- Gas engine: outdoors only, per Champion
- Warranty drops to 180 days for commercial use
- 79 lb
- Solids warning conflicts with the published limit
Verdict: Compare this 2-inch kit for a confirmed suitable water-transfer job with safe outdoor engine placement. Do not select it for muddy water solely from the solids rating.
Champion 100743 3-Inch Semi-Trash Water Pump
224 cc 4-stroke OHV engine · 3 in. NPT inlet and outlet · up to 264 GPM · 92 ft total head · 26 ft suction head · 3/4 in. solids · cast iron impeller and volute · self-priming · 12 ft suction and 25 ft discharge hose included · 93.9 lb · 2-year limited warranty (180 days commercial)
The 3-inch version has higher published flow and solids limits, subject to the conflicting water warning. Champion lists up to 264 gallons a minute and solids up to 3/4 inch, with the same 92 feet of total head and 26 feet of suction head as the 2 inch. The engine is a 224 cc unit and the pump weighs 93.9 pounds, per Champion’s current manual.
Consider the larger kit when confirmed suitable water and your required duty point justify it; its maximum flow is not the output at every lift. Champion’s current manual, revised December 2025, gives two years of coverage and 180 days for commercial and industrial use, the same as the 2 inch. A 2020 edition of the manual listed 90 days for commercial use, so read the warranty page that comes in the box. It carries the same warning against pumping sludge, sewer or water containing solid material.
- 264 GPM, the most flow on this page, per Champion
- 3/4 in. solids, per Champion
- Same head ratings as the 2-inch
- Hoses included
- 93.9 lb
- Warranty drops to 180 days for commercial use
- Needs 3 in. hose and fittings
- Solids warning conflicts with the published limit
Verdict: Compare it when the required flow justifies a 3-inch kit, you can move about 94 pounds, and Champion confirms the water you intend to pump.
Tsurumi HS2.4S Submersible Trash Pump with Agitator
1/2 HP, 115 V, 5.2 A (5.4 A at 110 V) · 2 in. NPT discharge at 45° · 0.28 in. solids · semi-vortex urethane impeller with agitator · cast iron casing · double inside mechanical seals, silicon carbide faces · built-in thermal protection · 20 ft cord · 25 lb · manual (no float) · 2-year warranty, per the listing
This one goes in the water. Tsurumi’s HS series has an agitator that suspends solids so the semi-vortex urethane impeller can pass sand and stringy material. Tsurumi lists sediment removal from small sumps and basins and site drainage among its uses, a 104 degree F maximum water temperature, and thermal protection against overload and accidental dry running. That protection is not permission to leave it running dry.
It uses a 115 V supply and makes no engine exhaust. That can suit a safely powered dewatering pit; it does not make a flooded electrical area safe to enter. Solids handling is 0.28 inch, smaller than the Champions, and Tsurumi’s sheet gives a curve rather than a single number: about 39 feet of head at no flow, about 35 GPM at 20 feet, and about 53 GPM at the low end near 4 feet (our reading of the curve). The Amazon title says 39 GPM.
The HS2.4S is manual; the HSZ2.4S version adds a float switch. The dimension sheet gives a 3-1/2-inch continuous running water level. That is not a promise to dry a floor to 1/8 inch; choose a shallow-water utility pump for that finishing job.
Plan the 2-inch NPT discharge connection and hose separately; the sheet does not establish an included discharge-hose kit.
- Agitator suspends solids for pumping sand, per Tsurumi
- No engine exhaust
- Thermal protection, per Tsurumi
- 25 lb, with a 20 ft cord
- 0.28 in. solids, smaller than the gas pumps
- Lower published flow than the gas kits here
- No float switch on this model
Verdict: Choose it for supervised sand/silt dewatering within its solids limit, with safe power and enough water depth. Skip it for unattended float-controlled drainage or a nearly dry floor.
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Before You Buy
- Size by the duty point. Select flow at the job’s lift, not maximum flow alone. Check hose losses, water depth and the material being pumped. A larger port is not proof that a pump is right for your water.
- Resolve water compatibility before ordering. Champion’s contradictory solids warning needs maker clarification for debris use. Tsurumi’s smaller limit and agitator suit its documented sand applications, not every contaminated floodwater cleanup.
- Plan the hoses. Port size sets hose size: 2 inch or 3 inch NPT on the Champions, 2 inch NPT discharge on the Tsurumi.
- Read the warranty for trade use. Champion’s current manuals cut coverage on both pumps to 180 days for commercial and industrial use, cover the original purchaser only, exclude hoses and hose fittings, and ask you to register within 10 days of purchase.
- Keep the gas pump outdoors. Carbon monoxide from the engine can kill indoors, per Champion.
When These Pumps Are the Wrong Choice
No full-trash construction pump is ranked here. The two gas kits are sold as semi-trash pumps, with an unresolved warning on solids; the electric option is a smaller-solids sand/dewatering pump. For heavy sludge, large debris or sewage, get a pump specified for that material and the site’s hazards. Do not treat a pump’s ability to pass one particle size as permission for every kind of waste.
For recurring groundwater entering a basement, assess a permanent drainage system rather than relying on a portable cleanup pump: see our sump pump picks and crawl space sump pump picks.
FAQ
What is the difference between a trash pump and a semi-trash pump?
Names alone do not establish what a pump can handle. These Champion semi-trash models list 1/2- and 3/4-inch solids but also carry a conflicting warning against water with solid material. Confirm the intended water with Champion. The Tsurumi HS2.4S specifies 0.28-inch solids and an agitator for sand; no full-trash construction pump is ranked here.
Can I run a gas trash pump inside a flooded basement?
No. Champion’s manual prohibits running it inside a home or garage, even with doors and windows open. Keep the engine outside, far from windows, doors and vents. An electric submersible option still requires safe electrical conditions; do not enter water near energized equipment or use an appliance while standing in water.
Can a trash pump pump sewage?
Do not choose these pumps for sewage cleanup. Champion’s manuals exclude sewer water, and this Tsurumi selection is for sand and site dewatering. A sewage backup requires a system specified for the waste and hazards, or professional help; see our sewage ejector pump picks.
How high can a trash pump lift water?
Champion publishes 92 feet of total head and 26 feet of suction head for both gas kits. Those are separate limits, not flow guarantees or figures to add together. Output decreases as lift increases. Select using the job’s actual lift and hose arrangement; Tsurumi supplies a flow-versus-head curve.
Do trash pumps need to be primed?
The gas kits require initial priming: fill the pump housing through its priming cap before starting, following the exact manual. Self-priming does not mean dry-starting. If it ran dry, stop the engine and let it cool before refilling. Do not remove a top or drain plug while it runs.
Why Trust Plumbing Picks
Plumbing Picks is written by a licensed Georgia journeyman plumber. Every spec here comes from the maker documents linked below, or from the Amazon listings we link; nothing comes from hands-on testing. On October 8, 2026, every linked listing was in stock and sold by Amazon.com. If you buy through a link we may earn a commission at no extra cost to you. Nobody pays to be included here. More on who writes this and how we pick.
Sources
- Champion Power Equipment: 100742 2 in. semi-trash pump operator’s manual (specifications, safety, warranty)
- Champion Power Equipment: 100743 3 in. semi-trash pump operator’s manual (revised December 2025)
- Tsurumi: HS / HSZ / HSD series semi-vortex wastewater pump specification sheet (HS2.4S-62)
- Champion 100742 product page: kit contents and published solids rating
- CDC: electrical hazards after flooding
- Amazon listings for each linked pump (linked above)
Which Pump Fits Your Job?
For supervised sand/silt dewatering with safe power, compare the Tsurumi HS2.4S and its flow curve, solids limit and operating water depth. For a gas hose kit, compare Champion’s port size, included hoses and weight only after resolving the water warning with the maker. Choose a utility pump for clean shallow-water finishing, and a purpose-specified system or professional for sewage and heavy sludge.