Kärcher Pressure Washer K1700, 3 Spray Nozzles, Detergent T

The Verdict

Let’s be straight: the pressure washer aisle is crowded with 2000+ PSI machines that promise to blast paint off a battleship. The Kärcher K1700 takes a different lane — it’s a 1700 PSI electric unit designed for the 80% of homeowners who wash a car, rinse a patio, or spritz the siding, not repave a driveway. And for that job, it’s genuinely good. But it’s not without quirks. Here’s the full story.

What’s in the box

You get the K1700 body with an integrated 20-foot pressure hose, a 5-foot water supply hose with a garden-hose adapter, the gun assembly, three color-coded quick-connect nozzles (0° red for stubborn stains, 25° green for general washing, 40° white for delicate rinsing), and a detergent tank that mounts on the side. The unit sits on a compact wheeled base — about 15 inches tall — so it’s easy to roll around a patio. No assembly headache; the nozzles click in with a satisfying snap.

Real-world performance

The 1700 PSI rating is honest. On a test run, it stripped caked-on mud from a concrete driveway seam in one pass with the 0° nozzle, and the 40° nozzle rinsed a sedan’s paintwork without a single streak. The electric motor is quieter than any gas unit I’ve used — you can hold a conversation next to it — and it starts instantly. No priming, no pulling a cord, no oil checks.

The detergent tank is the standout feature. It’s not just a reservoir — it has a dilution dial, so you can run a strong soap mix for the car’s lower panels and a lighter mix for the roof. That’s a level of control you don’t get on most sub-$200 washers. You’ll see it clearly in the product images: the tank sits right on the pump housing, and the suction line is short, so soap draws consistently without the sputtering you get on units with long pickup tubes.

Buyers consistently echo this. One Amazon review puts it plainly: “The detergent tank is a game changer — no more mixing soap in a bucket and trying to keep the pickup tube from floating away.” Another notes, “It’s light enough to carry up stairs to my balcony deck, which my old gas washer never was.”

Where it falls short

Here’s the honest downside list. The 20-foot hose has no reel. You’ll coil it by hand after every use, and mid-job it’s a trip hazard — I nearly ate it on my own driveway twice. The detergent tank holds roughly 0.5 liters, which sounds fine until you’re doing a full truck or a 200-square-foot patio; plan on refilling mid-task.

The wand and trigger are mostly polymer. They feel solid enough for a season of weekend use, but if you’re the type who drops tools, the trigger assembly is the first thing to crack. The 0° nozzle is also unforgiving — one slip and you’ll etch a line in soft wood or car trim. That’s not a defect, but it’s a warning: don’t hand this to a novice without a quick lesson.

Who should buy this

• The weekend car detailer: 1700 PSI with the 40° nozzle is perfect for soap-and-rinse cycles without risking clear coat damage.
• The patio and siding owner: Light concrete, vinyl siding, and fence panels clean up fast with the 25° nozzle.
• The apartment dweller: It’s compact, rolls easily, and stores in a closet corner — no garage required.

Skip it if you need to strip paint, clean heavy oil stains from a commercial parking lot, or you regularly tackle large surfaces like a full driveway — you’ll want 2000+ PSI and a hose reel.

FAQ

Can I use it with a standard garden hose? Yes, as long as you have a standard 3/4-inch threaded spigot. The included 5-foot supply hose connects directly. It needs a minimum flow of about 1.5 GPM; if your well pump or municipal supply is weak, expect pressure drops.

Does the detergent tank work with any soap? It’s designed for Kärcher’s own detergent, but you can use any pressure-washer-safe soap. Avoid dish soap or bleach — they’ll foam excessively and can leave residue on the pump seals.

Is this good for cleaning a car without scratching? Yes, with the 40° nozzle and detergent. Keep the wand about 12 inches from the surface. The 0° nozzle is too aggressive for paint — use it only on concrete or metal.

The Verdict

Rating: 4.2/5

Buy it if you want a reliable, quiet, apartment-friendly washer for cars, light patio work, and general outdoor grime — and you value an integrated soap system that actually works.

Skip it if you need heavy-duty cleaning power or refuse to live without a hose reel. For those buyers, the K1700’s convenience won’t outweigh its limitations.

For the price point, the Kärcher K1700 delivers solid, predictable performance with one genuinely clever feature (the detergent dial) and one annoying omission (no reel). It’s a smart buy for the right user — just know what you’re getting into before you pull the trigger.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.