6 Best Scrub Brushes With Built-In Soap Dispenser For Quick RV Washes | Hack

You pull into a campsite after a long, dusty drive, and your rig looks like it just finished the Baja 1000. The old way meant dragging out a bucket, a hose, a sponge, and a separate bottle of soap, turning a quick rinse into a 90-minute chore. A scrub brush with a built-in soap dispenser changes that entire equation, transforming one of the most tedious parts of RV ownership into a simple, streamlined task.

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Why a Soap Dispensing Brush is an RV Game Changer

Let’s be direct: washing an RV is a massive job. You’re cleaning a small house on wheels, with acres of fiberglass, tricky awnings, and hard-to-reach rooflines. The traditional bucket-and-sponge method is incredibly inefficient. You’re constantly walking back and forth, re-soaping your sponge, and wasting a shocking amount of water in the process.

A soap dispensing brush solves the core logistical problem. It combines the water source, the soap, and the scrubber into a single tool. This means you apply soapy water exactly where you’re scrubbing, right when you need it. There’s no more dipping, no more wasted soap running down the side of the rig before you can even get to it, and no more juggling three different things at once.

This isn’t just about convenience; it’s about a better clean and protecting your investment. By controlling the soap and water flow, you use less of both—a critical factor when you’re at a campground with limited water or trying to be eco-conscious. It also allows you to work faster, preventing soap from drying on the finish before you can rinse, which can leave ugly spots and streaks. It turns a multi-step, multi-tool process into one fluid motion.

Camco RV Flow-Through Brush: The RVer’s Go-To

When you see a product with "RV" right in the name, it’s usually for a good reason. Camco is a staple in the RV world, and their Flow-Through Brush is designed specifically for the challenges of cleaning a rig. The standout feature is the telescoping handle, which typically extends from around 4 feet to 7 feet. This is the sweet spot for reaching over slide-outs and up to the roofline of most Class C and travel trailers without needing a ladder.

The brush head itself is equipped with soft bristles, which is non-negotiable for RVs. Your rig’s finish, decals, and seals are far more delicate than a car’s clear coat. Stiff bristles will leave fine scratches and can peel up the edges of your graphics over time. Camco gets this, and their bristles are designed to scrub away dirt and road grime without damaging the fiberglass or gel coat.

Most models also include a crucial on/off switch right at the handle. This lets you pause the water flow instantly while you move to a new section or scrub a stubborn spot, conserving water and preventing you from getting soaked. For its price, reliability, and RV-specific design, the Camco brush is the baseline standard that other brushes are measured against.

Carrand 93062 Quad Head for Maximum Coverage

The Carrand Quad Head brush is all about efficiency through surface area. Instead of a single flat face, its head is beveled on all four sides, creating a massive 10-inch cleaning surface. When you’re washing a 35-foot fifth wheel, that extra coverage translates directly into less time spent on the job. You’re simply making fewer passes to clean the same amount of wall.

This design is particularly effective on the large, flat sides of an RV. The bristles are soft enough for the main body but are often paired with a sturdy, telescoping pole that gives you the leverage needed to apply gentle pressure. The all-sided bristle design also helps you get into corners and around windows or storage bay doors more effectively than a simple flat brush.

The main tradeoff here is maneuverability. A larger head can feel a bit more cumbersome when you’re trying to clean smaller, more detailed areas like around the mirrors or the front grille. But for blasting through the main event—those huge, flat sidewalls—the Carrand’s design can easily shave 15-20 minutes off your wash time.

DocaPole Extension Brush for Reaching High Spots

If you own a big Class A, a tall fifth wheel, or a "super C," you know the frustration of the top third of your rig. It’s a ladder-and-bucket nightmare. This is where the DocaPole system shines. Their primary advantage is the incredibly long and sturdy extension pole, often reaching 24 feet or more. This is a game-changer, allowing you to safely clean your roof and the highest points of your sidewalls from the ground.

The DocaPole is more of a system than a single tool. You get a high-quality pole and can attach various tools, including their soft-bristle, flow-through brush head. This modularity is a huge plus for small-space living, as one pole can serve multiple purposes. The pole’s locking mechanisms are typically more robust than cheaper alternatives, preventing the annoying pole collapse that can happen mid-scrub.

While the initial investment might be higher, the safety and convenience are undeniable. Balancing on a wobbly ladder with a wet, soapy brush is one of the most common ways RVers get injured. The DocaPole eliminates that risk entirely. It’s the definitive solution for anyone who dreads the "high-altitude" part of washing their rig.

Unger HydroPower: Professional-Grade Cleaning

Sometimes, you just want the best tool for the job, and you’re willing to pay for it. The Unger HydroPower line is that tool. This is professional-grade window and vehicle washing equipment, and the quality is apparent the second you pick it up. The poles are often lighter and more rigid, the water flow controls are more precise, and the connections are built to withstand daily use.

These systems are often designed to work with deionized water filters, which is the secret to a truly spot-free rinse. While you can use them with a standard hose and soap dispenser attachment, their full potential is unlocked when paired with a filtration system. The brush heads are exceptionally well-made, with densely packed, flagged bristles that hold tons of soapy water and are exceptionally gentle on sensitive finishes.

This is not the brush for the casual weekend warrior. This is for the full-timer who takes immense pride in their rig’s appearance or the RVer who washes their coach every few weeks. It’s an investment, but like any good tool, it pays for itself in performance, durability, and results that are a clear step above the competition.

Mr. Siga Long Handle Brush: A Versatile Option

Not every tool in your RV needs to be a specialized, single-purpose item. The Mr. Siga brush is a great example of a versatile, budget-friendly option that gets the job done without the RV-specific branding. It’s fundamentally a solid, long-handled car wash brush that works perfectly well for most travel trailers and Class C RVs.

The key features to look for are a telescoping handle and a soft, scratch-free brush head, both of which are common on Mr. Siga models. While the pole might not be as long as a DocaPole, it’s usually more than sufficient for rigs under 12 feet tall. The build quality is solid for the price, offering a great balance of affordability and function.

The real appeal here is value and versatility. You can use this brush to wash your tow vehicle, your RV, and even the siding on your sticks-and-bricks house if you have one. For the RVer who needs a good, reliable tool without overspending on hyper-specialized gear, this is an excellent and practical choice.

OXO Good Grips Palm Brush for Detail Work

The big pole brush is for the war; this little guy is for the special operations. The OXO Good Grips Palm Brush, with its push-button soap dispenser, is the perfect tool for detail work. Think about the front cap of your rig after a summer drive—it’s a graveyard of bug splatter that a big brush just smears around. This palm brush lets you apply concentrated pressure and soap right where it’s needed.

It’s also my go-to for cleaning wheels and tires, scrubbing stubborn black streaks under windows, and tackling grime around ladders and bumpers. The ergonomic design fits comfortably in your hand, and the stiff-but-safe bristles provide more scrubbing power than the soft bristles on a large flow-through brush.

You wouldn’t want to wash your whole RV with it, but that’s not the point. Having one of these in your cleaning kit saves a ton of frustration. It allows you to quickly address the toughest 10% of the dirt without having to break out the full washing arsenal. It’s a small tool that solves a very specific and common set of problems.

The Soap Dispenser Hack: The Right Cleaner Matters

Here’s the most important part of this whole system: the soap you put inside matters more than the brush itself. Many people make the mistake of pouring concentrated dish soap or some other harsh household cleaner into the dispenser. This is a terrible idea. Those detergents are designed to strip grease, and on your RV, they will strip the wax right off your finish, leaving it dull and unprotected.

The real hack is to use a high-quality, pH-neutral RV or automotive wash-and-wax formula. These cleaners are specifically designed to lift dirt and grime without damaging the delicate gel coat, decals, or protective wax layers. They contain lubricants that help the brush glide over the surface, preventing micro-scratches.

For best results, don’t pour the soap in at full strength. It will be too thick to flow properly and you’ll use way too much. Instead, pre-mix your RV wash with water in a separate container—usually a 1:10 or similar ratio, but check the bottle’s instructions—before filling the brush’s dispenser. This ensures a consistent, sudsy flow that cleans effectively and rinses away easily, giving you that professional-looking finish with half the effort.

Ultimately, a soap-dispensing brush isn’t a luxury; it’s a fundamental upgrade to your RV maintenance toolkit. By choosing the right brush for your rig’s size and the right soap for its finish, you reclaim valuable time and energy. It’s a simple hack that makes a world of difference, letting you spend less time washing your rig and more time enjoying it.