When your RV black tank overflows through the vent at less than full capacity, it's typically due to incorrect tank positioning, vent pipe placement, or sensor issues rather than blockages. The tank may be installed at an angle or the vent pipe may enter too low on the tank.
If you've already replaced the valve multiple times and the foot pedal continues to fail, replacing the entire Dometic 310 toilet is often more cost-effective and reliable than repeatedly replacing individual components.
RV toilet dump valves stick after winterization due to lack of moisture and seal drying. Apply water-based lubricant or silicone spray to the valve mechanism and seals before and after winterizing to prevent sticking.
If your Dometic 310 toilet is leaking at the foot pedal pivot after replacing the toilet valve, the issue is likely worn seals in the pedal mechanism or loose mounting hardware. The leak typically originates from the pedal shaft seal or the mechanism housing.
Find Dometic toilet parts diagrams on dometic.com support section or RV parts suppliers like PPL Motorhomes. Model number is on sticker behind toilet or under lid. Common parts include ball seal and water valve.
Replace leaking Aurora with Thetford Aqua Magic Style II for budget reliability or Dometic 310 for ceramic bowl at mid-range price. Aria Classic is premium option if budget allows.
Everything you need to know about RV plumbing systems from fresh water supply to waste management.
For exhaust manifold, try muffler shops or heavy truck service centers. For VacuFlush, contact marine toilet specialists or RV dealers with SeaLand experience. Both are specialty repairs.
Yes, the Dometic Sealand Traveler 511 will directly fit your existing 4-bolt floor flange from the 111 model. Both toilets share the same mounting pattern and basic plumbing connections, making this an excellent upgrade choice.
An RV toilet that won't hold water usually has a faulty ball seal, blade seal, or toilet valve. Most issues can be fixed by cleaning or replacing the seal assembly, which typically costs $15-30 and takes about an hour.