Commercial Cleaning Equipment Checklist: Karcher K5, EGO Floor Scrubbers, and Used Industrial Vacuums

This checklist is for facility managers, procurement teams, and operations leads who are buying commercial cleaning equipment. It covers Karcher pressure washers (including the K5), EGO floor scrubbers, energy-saving floor scrubbers, and used industrial vacuum cleaners.

I'm a quality and brand compliance manager at a facilities services company. I review every equipment order before it reaches our crews—roughly 200+ items a year. In 2024, I rejected about 15% of first deliveries because the spec didn't match what we ordered. This is the process I wish every vendor used.

Step 1: Match the Machine to the Actual Job

Don't start with a brand. Start with the job: floor type, square footage, power availability, water access, duty cycle, and who will use it. A Karcher K5 pressure washer is a great fit for light commercial cleaning—vehicles, dumpsters, entryways. It's probably overkill for a home driveway, and it might not be enough for heavy industrial grease. If you're looking at an EGO floor scrubber, confirm whether battery runtime covers your shift. If you need an energy-saving floor scrubber, check whether the savings come from lower water use, lower power draw, or both. The label 'energy-saving' doesn't mean much until you see the numbers.

Step 2: Verify Pressure Washer Specs—Especially Hose Size

For Karcher pressure washers, the K5 series is a common commercial light-duty choice. But the hose size and connection type trip people up. Karcher K5 pressure washer hose size is typically 8m to 10m in length, with an M22 x 1.5 threaded connection on many models. Some newer models use quick-connect fittings. Before you order replacement hoses or accessories, confirm the exact connection on your unit. I've seen crews order the wrong hose because they assumed all K5s were the same. That's a $40 mistake that turns into a $400 delay when the machine is down.

According to Karcher's published specifications, K5 series pressure washers commonly use an 8–10 m high-pressure hose with M22 x 1.5 threaded connections. Always verify your exact model.

Also check: max pressure (PSI/bar), flow rate (GPM/LPM), and whether the hose is reinforced for hot water if you need it. If you're buying used, ask for the serial number and check parts availability.

Step 3: Evaluate Floor Scrubbers for Energy and Battery Reality

An EGO floor scrubber—or any battery-powered scrubber—can be a good fit for quiet, indoor, light-to-medium cleaning. But battery runtime claims are often tested under ideal conditions. Ask for the amp-hour rating, charge time, and real-world runtime at your water flow setting. For an energy-saving floor scrubber, look beyond the marketing label. Compare power draw (watts), water consumption (L/h), and cleaning path width. A narrower scrubber with lower water use might take longer, which can cancel out the energy savings.

I'm not a battery engineer, so I can't speak to cell chemistry degradation over 2,000 cycles. What I can tell you from a compliance perspective is: demand a written runtime guarantee and a maintenance plan. In my opinion, that's more valuable than a spec sheet claim.

Step 4: Inspect Used Industrial Vacuum Cleaners Like a Risk Audit

Industrial vacuum cleaner for sale used can be a smart buy—if you inspect it properly. Used units are common in auctions and dealer inventory. Check: motor hours (if available), filter condition and HEPA rating, hose and wand integrity, seals and gaskets, and whether the unit is rated for the dust class you need (e.g., L, M, H). For combustible dust, a standard shop vac is not acceptable. Ask for service records. If the seller can't provide them, assume you'll need to replace filters and possibly the motor.

The 'bargain' vacuum that saved $200 up front cost us $1,200 in repairs and filters within six months. That's when I created a formal used-equipment checklist. We didn't have a formal inspection process before. It cost us when that vacuum failed during a critical shutdown cleanup. The third time we had an equipment surprise, I finally created a verification checklist. Should have done it after the first time.

Step 5: Check Documentation, Compliance, and Parts Availability

This is the step most buyers skip. For any commercial cleaning equipment, get the CE/UL markings, declaration of conformity, and warranty terms in writing. For Karcher equipment, confirm whether the warranty is transferable if you buy used. For EGO floor scrubbers, check whether the battery and charger are included and covered. For energy-saving floor scrubbers, ask for test data on power and water consumption—not just a brochure claim. And for used industrial vacuums, verify that replacement filters and hoses are still available. If a model was discontinued three years ago, parts might be scarce.

Step 6: Run a Total Cost of Ownership Calculation

Purchase price is maybe 40% of the real cost. Add: consumables (filters, hoses, nozzles, batteries), maintenance labor, downtime risk, and energy/water use. For a Karcher K5, a replacement hose is relatively cheap—but if you buy the wrong one, the downtime is expensive. For an EGO floor scrubber, battery replacement can be a significant cost. For a used industrial vacuum, factor in a full filter set and a motor inspection. I've seen a used vacuum listed at $800 that needed $600 in parts. The new equivalent was $1,600. The used unit was still a good deal—but only because we knew the numbers before we bid.

Step 7: Document Acceptance Criteria Before You Pay

Write down what 'acceptable' means: pressure at the nozzle, flow rate, battery runtime, filter efficiency, noise level, and cosmetic condition. For a Karcher pressure washer, test it with a pressure gauge. For a floor scrubber, run it on your actual floor for 20 minutes. For a used vacuum, check suction at the hose end and inspect the filter housing. If the seller won't allow a test, that's a red flag. In my experience, the vendors who push back on testing are the ones who know the equipment won't pass.

Common Mistakes and Caveats

This checklist works for most standard commercial cleaning equipment. But if you're cleaning hazardous dust, food-grade environments, or explosive atmospheres, you need specialist advice. I'm not an industrial hygienist or a certified safety engineer. For those situations, consult a qualified expert before you buy anything.

Also, this information was accurate as of Q4 2024. Equipment specs and availability change fast—verify current specs with the manufacturer or dealer. I learned these vendor evaluation criteria over four years of reviewing equipment, and the landscape has evolved, especially with new battery technology options.

• Assuming all Karcher K5 hoses are interchangeable. They're not—check the connection type.
• Buying a used industrial vacuum without a filter upgrade budget.
• Trusting 'energy-saving' claims without water and power data.
• Skipping the test run. A five-minute test can save a five-figure mistake.
• Forgetting to check parts availability. A cheap machine with no parts is a paperweight.

If you're looking at a specific model, start with the manual. Karcher publishes hose sizes and connection types. EGO publishes battery specs. For used equipment, ask for the service history. That's the boring work that prevents the expensive surprises.