How to Use an RV Dump Station
Step-by-step beginner guide to emptying your RV black and gray holding tanks cleanly, safely, and courteously.
Empty your tanks in strict order: always dump the black tank (toilet waste) first, followed by the gray tank (sink/shower soapy water) to flush and rinse the sewer hose clean. Always use disposable heavy-duty gloves, a transparent 90-degree sewer elbow, and never leave your station unattended.
#1Essential Equipment Before Arriving
A stress-free dump station visit starts before pulling up to the station. You need a dedicated, heavy-duty 3-inch sewer hose (10 to 15 feet), a clear transparent 90-degree sewer elbow adapter, thick waterproof disposable gloves, and a dedicated black tank rinse hose (clearly color-coded, never white).
The transparent sewer elbow is critical: it lets you visually confirm when the tank has completely emptied and when the rinse cycle runs clear water.
#2Step-by-Step Dumping Sequence
1. Position your RV so the sewer outlet aligns comfortably with the ground drain, leaving enough slack in your hose.
2. Put on your protective gloves. Ensure both trailer waste valves (black and gray) are firmly closed before removing the outlet cap.
3. Connect the sewer hose to the trailer outlet bayonet lugs and twist until locked. Insert the clear elbow into the ground sewer inlet and secure it with the provided weight, threaded ring, or sewer donut.
4. Pull the BLACK tank valve handle first. Let it drain completely until the flow stops in the clear elbow.
5. If your RV features a black tank flush, connect the dump station rinse hose (NEVER your drinking water hose) and flush for 2–3 minutes with the black valve open.
6. Close the black tank valve. Now pull the GRAY tank valve handle. The soapy gray water cleanses solids and bacteria from the interior of your sewer hose.
7. Close the gray tank valve, disconnect the hose from the rig, rinse the hose interior with non-potable rinse water, disconnect from the ground drain, and cap both the RV and the ground inlet.
- Pulling the gray valve first, leaving contaminated waste lingering in the hose with no soapy water left to flush it.
- Using your white drinking water hose to connect to the black tank flush fitting or rinse spigot.
- Leaving the black valve open with black tank flush running and walking away (can cause catastrophic interior toilet overflow).
- Failing to weight or thread the sewer elbow into the ground pipe, causing the hose to kick out under pressure.
Sunday morning at Fort De Soto Park dump station: a queue of rigs is waiting. A prepared RVer with gloves, clear elbow, and pre-loosened caps finishes the complete dual-tank drain and sanitization cycle in under 8 minutes, leaving the rinse tower clean for the next traveler.
- •Always Black Tank first, Gray Tank second.
- •Keep your white drinking water hose far away from the dump station area.
- •Add holding tank digestant treatment and 1 gallon of water back into the black tank after dumping to keep seals lubricated.
- •Rinse the concrete apron before you drive away.
- •Follow our interactive RV Dump Station Checklist on your phone to complete every step in proper hygienic order.
Need to empty your tanks in Florida? Locate clean municipal, state park, and travel plaza dump stations nearby.
Florida Department of Health (Ch. 64E-15 RV Parks) • Recreation Vehicle Industry Association (RVIA)