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 means 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. Mpro 25 offers oil change feature so that users can extend the life of the pump.

Triplex pump is often used interchangeably with crankshaft pump. In general, triplex refers to three pistons and they can be driven by a crankshaft. When it is crankshaft-driven, it is considered the gold standard for commercial pressure washers.

Swash Plate Pump is 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. Durability is lower and typically not designed for continuous or heavy-duty use. They are usually non-serviceable.

Universal Motor can be found in most low-cost, consumer-grade pressure washers. It uses brushes and a commutator with very high RPM therefore often requiring gear reduction.
It has lower efficiency around 55% and wears out faster due to brushes. It is noisy with high-pitched whine due to brush friction. Not serviceable.

Induction Motor can be found in mid-tier and some commercial electric washers. It uses electromagnetic induction, brushless, with Lower RPM, and often with direct drive. Efficiency is higher, around 70% and durability has improved. However, it is heavier, bulkier and larger than universal motors. It is still noisy with high pitched whine. Typically not serviceable.

Permanent Magnet Motor (PMM) is considered rare and premium especially in pressure washer applications. In fact, before Mpro 25 was born, the industry has not offered a high-performance unit that is cost effective for the general public.

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 low-pitched.

The lightbar is the integral part of the main unit. Its multifunctional program communicates to the user on power output level, operating status, even serves as an oil change reminder. Please refer to Table A2 - Lightbar 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 change is crucial to maximize pump performance and 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 that is specifically formulate for high pressure washer pumps.

It is recommended to change oil for every 80-hour 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 oil more frequently when deemed necessary.

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

Mpro 25 is designed to last 300 hours or more, with proper maintenance and required oil change. Real life outcome may vary as the machine will be subject to various working environment. 

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

Under Constant Mode, when the spray gun trigger is released but has not been released for more than 5 minutes, the motor continues running at working speed. Intelligent Standby is bypassed under 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 whereas Intelligent Standby is precisely controlled by the software, which allows much faster and smoother “back to work” response time, reducing kickback and discomfort. In addition, the built-in program allows mode switch to bypass Intelligent Standby, giving user more control if desired. A good analogy will be that TSS is analog while Intelligent Standby is digital.

Mpro 25 is software controlled to safely cap the AMP draw below 15 which is most common in US households.