Sewer & Dump

The Aurora 16BHX has two waste tanks: gray water (sinks and shower) and black water (toilet). Both drain through a single 3-inch sewer outlet on the driver’s side.

Always dump black first

Always dump the black tank first, then the gray tank. The gray water flushes the sewer hose clean.

What you need

• Sewer hose (at least 20 ft — stored in the bumper)
• Sewer hose support/slinky (keeps hose elevated for proper flow)
• Rubber gloves
• Sewer donut / seal (fits into the campsite sewer inlet)

Full hookup (sewer at site)

Connecting

1. Put on gloves.
2. Remove the sewer hose from the bumper storage.
3. Connect one end to the camper’s 3-inch sewer outlet (twist and lock).
4. Run the hose to the campsite sewer inlet — use the hose support to keep it sloped downhill.
5. Insert the sewer donut into the campsite inlet and push the hose end in.
6. Leave the gray valve closed and black valve closed until dumping.

Don’t leave the black valve open

Leaving the black tank valve open causes liquids to drain out while solids build up — creating a “poop pyramid.” Keep it closed and dump when 2/3 full.

Dumping

1. Pull the black tank handle (usually black) — let it drain completely.
2. Close the black tank valve.
3. Pull the gray tank handle (usually gray) — let it drain.
4. Close the gray tank valve.
5. Flush the black tank if you have a tank flush port (connect a hose, open valve, run water for 2–3 minutes).

Disconnecting

1. Close both valves.
2. Remove the hose from the campsite inlet.
3. Rinse the hose with a dedicated rinse hose.
4. Cap the camper sewer outlet.
5. Store the hose in the bumper.

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Dump station (no sewer hookup)

When leaving a site without sewer hookup, use a dump station.

1. Drive to the dump station.
2. Connect the sewer hose to the camper outlet and into the dump station inlet.
3. Dump black tank, then gray tank (same order as above).
4. Use the dump station’s rinse water to flush the hose.
5. Rinse the black tank if possible.

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Tank treatments

Add RV black tank treatment after every dump:

• Pour 1 packet or 4 oz of liquid treatment into the toilet with 2 gallons of water.
• This breaks down waste and controls odor.
• Use RV-safe toilet paper only — it dissolves quickly.

Tank level monitor

Check the control panel for tank levels:

• Dump black tank at 3/4 full (don’t wait for full — it gets harder to dump, and you need enough liquid to flush waste out properly).
• Gray tank can go to full before dumping.