The standard RV water pump is a blunt instrument. It has a mechanical pressure switch that does exactly one thing: turn the pump motor fully on when pressure drops below the trigger point, and fully off when pressure recovers. That's it. No middle speed. No throttling. No intelligence whatsoever. The pump either roars to life at 100% or sits silent — and because the system pressure drops every time you so much as open a faucet, that on/off cycle happens constantly. Open a valve just a little? Full blast. Brush your teeth? Full blast. Let the water run low while filling the dog bowl? The pump kicks on and off six times while it waits for your faucet flow to drop pressure far enough to trigger the switch. Variable SpeedNSF/61 Potable WaterDry Run Protection
The IRVWPC2 replaces the mechanical switch logic with an industrial-grade pressure transducer and a smart motor controller. Instead of measuring pressure with a spring-loaded switch and responding with full power, the IRVWPC2 continuously monitors system pressure and modulates the pump motor speed in real time to maintain your set target pressure. The pump speeds up when demand increases, slows down when demand is light, and delivers smooth, steady pressure at the tap instead of the pulsing surge-and-recovery you get from an on/off pump. The mechanical racket drops — in many installs, dramatically — because the motor is no longer repeatedly slamming to full speed from a dead stop every time you use water.
Modulated speed eliminates constant full-speed cycling
Pump runs at lower speed/current when demand is light
Fewer hard starts = less wear on motor and diaphragm
Dry run, low flow, watchdog, and long run protection
The IRVWPC2 uses pulse-width modulation (PWM) to control pump motor speed — the same basic technology used in virtually all modern variable-speed motor applications. Instead of delivering full 12V DC to the pump at all times, the controller rapidly switches the voltage on and off at a high frequency, varying the duty cycle (the ratio of on-time to off-time) to produce an effective average voltage that controls motor speed. The industrial-grade pressure transducer continuously reports system pressure to the controller, which adjusts the PWM duty cycle in real time to maintain your target pressure setpoint.
The result is a pump that runs at whatever speed is needed for current demand — and no faster. Brushing your teeth with the faucet barely cracked gets a slow, quiet pump. Taking a full-pressure shower gets full pump speed. The transition between the two is smooth and automatic, with no mechanical pressure switch clicking in the wall and no pump hunting between on and off states looking for equilibrium.
A standard mechanical pressure switch controlled pump has zero safety intelligence. It turns on. It turns off. If the tank runs dry, it runs dry — at full blast — until you notice. If a fitting fails and water is flowing somewhere it shouldn't be, the pump just keeps running. The IRVWPC2 adds four layers of protection that a bare pump can't provide.
When a water pump runs dry — pulling air instead of water — it generates significant heat with no liquid cooling, and the diaphragm and valves degrade rapidly. This happens every time a fresh water tank runs empty while the pump is active. The IRVWPC2 monitors pump current draw and recognizes the signature of a pump running without water load. When it detects dry-run conditions, it shuts the pump down instead of letting it continue to run unloaded, protecting the pump from the most common cause of premature failure. When water is restored (tank refilled or water source connected), the system resets normally.
The IRVWPC2 watches for sustained low-flow conditions that could indicate a partially blocked line, a stuck fitting, or a system operating in an abnormal state. If the pump runs at a very low flow rate for longer than expected, the controller flags the condition rather than letting the pump run indefinitely in a marginal state.
The watchdog monitors the pump's operating state and confirms normal controller function throughout the run cycle. If the controller itself experiences an unexpected fault condition, the watchdog detects the anomaly and responds rather than leaving the pump in an uncontrolled state.
If the pump runs continuously for longer than a set maximum period — which would indicate either a sustained large demand (normal) or, more importantly, an open faucet left running, a failed fitting, or a leak somewhere in the water system — the long run timer triggers an alert. This can be the difference between discovering a water leak while you still have a minor problem and discovering it after gallons have flowed somewhere they shouldn't.
The IRVWPC2 module has two onboard LEDs — one green and one red — that communicate the pump's current operating state at a glance. Unlike a bare pump where "is it working or not?" requires running water and listening, the IRVWPC2 gives you real status information.
The pressure sensing element in the IRVWPC2 kit is an industrial-grade pressure transducer — not a mechanical pressure switch like the one built into your pump. A mechanical pressure switch uses a spring and diaphragm to physically trip an electrical contact at a fixed pressure point. It has one setpoint, it trips above or below it, and it wears over time as the spring fatigues and the contacts corrode.
The IRVWPC2's industrial transducer is an electronic sensor that continuously outputs a pressure signal across the entire operating range. The controller reads this signal in real time and uses it to calculate the precise PWM adjustment needed to maintain target pressure. There are no moving parts in the pressure sensing element, no contacts to corrode, no spring to fatigue, and no single fixed trip point — just continuous precision pressure measurement that the controller uses to do its job.
All water-contact components in the kit are NSF/61 certified — the industry standard for components in contact with potable (drinking) water. This includes the pressure transducer assembly.
The IRVWPC2 includes internal rotary selector and slide switches for programming, along with onboard LEDs that confirm configuration changes. Two pressure ranges are available:
The target pressure is set by the rotary selector, and the slide switches configure additional operating parameters. The 2mm screwdriver for the rotary selector and the 5/64" Allen key for the slide switches are both included in the kit.
The IRVWPC2 installs inline at your pump. You are not running new wiring to the fuse panel — you are intercepting the existing wiring at the pump itself. The color-coded 4-wire connection makes this simple:
1. Cut the existing positive (red) wire connection between the pump motor and the RV's pump wiring 2. Connect the IRVWPC2's RED wire to the pump motor's positive terminal using the supplied WAGO connector 3. Connect the IRVWPC2's BLACK wire to the pump motor's negative terminal using the supplied WAGO connector 4. Connect the IRVWPC2's YELLOW wire to the RV's positive pump power wire using the supplied WAGO connector 5. Connect the IRVWPC2's WHITE wire to the RV's negative pump power wire using the supplied WAGO connector The IRVWPC2 now sits between the RV's 12V pump power and the pump motor, reading system pressure through the transducer and controlling motor speed accordingly. No panel wiring. No new circuits. No fuse box work.
• IRVWPC2 Controller Module • Industrial-grade pressure transducer assembly• Color-coded wiring harness with 4 WAGO connectors • Spare fuse • 5/64" Allen key (for pump adjustment, if required) • 2mm screwdriver (for rotary selector and switches) • Mounting screws
The IRVWPC2 is compatible only with standard 12V DC pressure-switch-controlled pumps with conventional brush motors. NOT compatible with: • Variable-speed pumps with built-in speed control (the controller has its own electronics and the IRVWPC2 will conflict with them) • Pumps with brushless motors • Pumps with built-in pressure/speed controllers or additional onboard electronics • 24V DC pump systems Common compatible pump types: Standard SHURflo (non-Revolution series), Seaflo, Remco, and similar mechanical-pressure-switch-controlled brush motor pumps that are either fully on or fully off in their standard configuration. NOT compatible with: The SHURflo 5900 series and Remco Aquajet series, and similar pumps that already incorporate variable speed or bypass technology with built-in electronic controls. If you have one of these pumps, you don't need the IRVWPC2 — the pump already manages its own speed. Not sure what type of pump you have? Contact IRVWPC directly before ordering: [email protected]. They respond within 24–48 hours and would rather confirm compatibility than have you return a product.
When the pump isn't running, the IRVWPC2 sits in standby drawing only 32 milliamps — approximately 0.032 amps. At that rate, even a 100Ah house battery at 50% usable capacity would power the module for over 1,500 hours of standby before the battery was affected. For practical purposes, the IRVWPC2's standby draw is a non-issue. You don't need to switch it off when the pump isn't in use.
If you have a SHURflo 5900 Smart Sensor or a Remco Aquajet series, or any other pump that already has variable speed or built-in bypass/flow control technology, the IRVWPC2 is not the right product for your pump. These pumps already manage their own speed electronically. Adding an external speed controller creates a conflict between two systems both trying to manage the same motor. The IRVWPC2 is for standard, dumb, on/off pumps — the ones that blast at full speed no matter what the demand is. That's exactly the pump it was designed to fix.
Many RVers add an accumulator tank to reduce pump cycling noise. An accumulator stores a small volume of pressurized water so the pump doesn't kick on for brief, low-demand draws. It helps — but it doesn't eliminate the on/off cycling. When demand exceeds the accumulator's stored volume, the pump kicks on at full blast just like before. The IRVWPC2 takes a fundamentally different approach: it doesn't store water, it changes how the pump operates. Instead of softening the edges of the on/off cycle, it eliminates the on/off cycle entirely and replaces it with smooth, demand-matched speed modulation. For most installations, the IRVWPC2 produces a more dramatic noise reduction than an accumulator alone.
• RV owners with a standard (non-variable-speed) water pump who are tired of the noise • Anyone who has tried to sleep through pump cycling and failed • RVers who want dry run protection for their pump when boondocking • Anyone who wants diagnostic visibility into their pump's operating status • Owners who want to extend pump life without replacing the pump itself
• 12V DC only – Not for 24V systems • Brush motor pumps only – Will not operate with brushless motor pumps • On/off pumps only – Not compatible with variable-speed pumps or pumps with built-in pressure/speed controllers • Max 8A output – Confirm your pump's maximum current draw is within this limit (most standard 3.5–4.0 GPM RV pumps operate within this range; check pump specs before ordering) • Contact IRVWPC before ordering if unsure: [email protected] – they will confirm compatibility for your specific pump model
The IRVWPC2 Intelligent RV Water Pump Controller is not just an accessory; it's a game-changer for your RV water system. This innovative device upgrades your standard 12 VDC mechanical pressure switch-controlled RV water pump into a marvel of efficiency and quiet operation. Imagine turning on your water and experiencing a smooth, steady stream without the jarring noise of the pump kicking in and out. That's the comfort the IRVWPC2 promises. It adjusts the motor speed to deliver precisely the amount of water you need, making every drop count.
Why Thousands Choose IRVWPC2
Whisper-Quiet Operation: Say goodbye to the distracting noise of your water pump. Enjoy peace and tranquility, whether you're taking a morning shower or washing the dishes.
Efficient Water Use: The smart technology ensures you use exactly the amount of water you need, reducing waste and conserving this precious resource.
Energy Savings: By optimizing the pump's operation, the IRVWPC2 also cuts down on electricity use, saving you money and helping protect the environment.
Experience the Difference
Join the ranks of satisfied RV owners who have witnessed firsthand the transformative power of the IRVWPC2. Whether you're a weekend warrior or a full-time traveler, this controller is the upgrade your RV has been waiting for. Don't settle for the status quo; elevate your RV experience with smoother, quieter, and more efficient water pump operation. Make every journey more enjoyable with the IRVWPC2 Intelligent RV Water Pump Controller.