FAQ's

In a nutshell, the Mpro 25 is a unique electric pressure washer built around a miniaturized, commercial-grade core. Its crankshaft-driven pump is powered by a high-efficiency permanent magnet motor, delivering high water flow, low energy consumption, exceptional balance, quiet operation, and long-term reliability. While the market is flooded with disposable budget units with overstated specs, and on the other end of the spectrum - pricey, bulky, industrial-grade machines, the Mpro 25 strikes the perfect balance, combining professional-grade performance with a sleek, compact design. It offers consumers the best of both worlds.

For general car washing, it is important to balance safe pressure levels with adequate water flow to effectively remove dirt without damaging your vehicle’s paint or trim. Professional car detailers often set PSI around 1100. Setting PSI too high risks damaging the paint depending on the condition of the vehicle body. Higher water flow such as 2+ GPM will allow much faster rinsing and better foam coverage.

Crankshaft Pump: The crankshaft drives plungers in a piston-like motion, similar to an engine, delivering superior efficiency, smooth output, and high durability. Most commercial units are serviceable due to this design. The Mpro 25 offers an oil change feature so that users can extend the life of the pump.

Triplex Pump: Often used interchangeably with crankshaft pump. Generally refers to three pistons that can be driven by a crankshaft. When crankshaft-driven, it is considered the gold standard for commercial pressure washers.

Swash Plate Pump: Most common in residential and lower-cost electric pressure washers. It uses a slanted “swash plate” to push pistons back and forth. Units are usually compact and lightweight but less efficient than crankshaft or triplex pumps. Durability is lower and typically not designed for continuous or heavy-duty use. They are usually non-serviceable.

Universal Motor: Found in most low-cost, consumer-grade pressure washers. Uses brushes and a commutator with very high RPM, often requiring gear reduction. Efficiency is around 55%, wears out faster due to brushes, and is noisy with a high-pitched whine. Not serviceable.

Induction Motor: Found in mid-tier and some commercial electric washers. Uses electromagnetic induction, is brushless, has lower RPM, and often features direct drive. Efficiency is higher (around 70%) and durability is improved. However, it is heavier, bulkier, and still noisy. Typically not serviceable.

Permanent Magnet Motor (PMM): Considered rare and premium in pressure washer applications. Before the Mpro 25, the industry had not offered a high-performance unit that was cost-effective for the general public. The Mpro 25 uses PMM instead of induced magnetism; it’s brushless, variable, and precise with excellent speed control. With high power density, the unit can be built compact and lightweight. PMM efficiency often reaches 85% or more. Durability is significantly increased with no brushes to wear out. It runs smoother and has a low-pitched sound.

The light bar is an integral part of the main unit. Its multi-functional program communicates to the user the power output level, operating status, and even serves as an oil change reminder. Please refer to Table A2 – Light bar Indicator in the Instruction Manual for details.

MaxFlow products are designed, engineered, and patented in-house, and manufactured by the parent company, Vision Industry. We do not outsource manufacturing, simply because we ARE the ultimate manufacturer, since 1989.

Regular oil changes are crucial to maximize pump performance, protect internal components from wear and corrosion, preserve the longevity of the machine, and maintain product warranty.

It is recommended to use 15W-40 non-detergent, non-foaming, high-quality motor oil specifically formulated for high-pressure washer pumps.

It is recommended to change the oil every 80 hours of standard duty working time. The unit features a built-in reminder (see Table A2 – Lightbar Indicator in the Instruction Manual for details). You may change the oil more frequently if deemed necessary.

Air and debris may be present inside the system, which can cause damage to the machine and, in some cases, injury to the operator.

The Mpro 25 is designed to last 300 hours or more with proper maintenance and required oil changes. Real-life outcomes may vary depending on the working environment.

Intelligent Standby is an innovative system program designed by MaxFlow. Under factory default (Normal Mode), once the spray gun trigger is released for 3 seconds, the motor slows down; when the trigger has not been squeezed for 10 seconds, the motor shuts down—entering Intelligent Standby state. Squeezing the trigger again immediately restarts the motor.

Under Constant Mode, when the spray gun trigger is released but not for more than 5 minutes, the motor continues running at working speed. Intelligent Standby is bypassed in Constant Mode, whereas Normal Mode features Intelligent Standby.

TSS mechanically shuts off the motor by sensing pressure buildup when the trigger is released. TSS usually relies on an unloader valve and/or a pressure switch to function. Intelligent Standby is precisely controlled by software, allowing much faster and smoother “coming back to work” response time, reducing kickback and discomfort. Additionally, the built-in program allows mode switching to bypass Intelligent Standby, giving users more control if desired. A good analogy is that TSS is analog, while Intelligent Standby is digital.

The Mpro 25 is software-controlled to safely cap the amp draw below 15, which is most common in U.S. households.