Stop guessing whether your black or gray tank is really clean. The Camco Dual Flush Pro sends a high-flow reverse blast of water directly into your holding tank and sewer hose, breaking up stubborn clogs, rinsing away residue, and clearing the tank sensors that tell you how full you actually are. Clear polycarbonate construction lets you watch the rinse water run clean before you disconnect -- no more pulling a dirty hose and hoping for the best.
Most built-in tank flush systems spray water from one fixed nozzle inside the tank. The Dual Flush Pro takes a different approach: it attaches to your sewer outlet, connects to your campground water supply, and reverses the flow so fresh water surges back through the hose and into the holding tank from the bottom up. This flood-and-drain action dislodges waste and pyramid buildup that sitting chemicals alone never fully dissolve.
The clear polycarbonate adapter is the key feature that makes this valve worth using. You can see the color and clarity of the water returning from your tank in real time. Keep flushing until the water runs clear, then you know the job is done -- not before.
Built-in anti-siphon protection prevents backflow from contaminating your campground or city water supply -- a code requirement at most RV parks.
Watch the rinse water in real time. When it runs clear, your tank is clean. No guesswork, no unnecessary repeated emptying.
Waste film on tank sensors is the number-one cause of inaccurate level readings. Reverse flushing strips that film and restores accurate readings.
Twists onto standard 3-inch lug fittings by hand in seconds. No wrenches, no pipe tape, no adapters required for most rigs.
Traditional tank rinsing drains the tank and then runs the built-in flush nozzle. The Dual Flush Pro reverses this sequence:
Pyramid blockages -- the solid waste mound that forms when there is not enough water in the tank -- are a common problem, especially for RVers who dry-camp or who conserve water aggressively. The Dual Flush Pro's high-flow blast can break up early-stage pyramids that are still partially soft. For severe, hardened blockages a dedicated holding tank treatment or enzyme treatment may be needed first to soften the mass before flushing.
Camco and all RV industry advisors strongly recommend keeping a separate, clearly labeled hose exclusively for sewer flushing. This hose should never be connected to a drinking water source or used for any other purpose. Store it in a sealed bag or dedicated compartment away from your fresh water hose.