Completely remove foods from dishes and utensils before washing them in the sink.  Food particles can become trapped in drainpipes and cause odor.  To treat the pipes, mix an odor control chemical designed specifically for RV plumbing with water in a plastic jug and pour equal amounts down each drain.  Allow the substance to sit overnight.

Running water down the drain and into the P-trap, or elbow, where bacteria may reside, can eliminate odor escaping from the gray tank.  During storage be sure to keep water in the P-traps at the vanity sink, galley sink, shower and washer/dryer.

Always wear gloves when working around the holding tanks.  Avoid mixing chemicals in the same tank and risk the danger of toxins.

Keep the black tank closed while hooked to shore services.  Leaving the valve open will prevent water from building inside the tank, which is necessary to keep solids from clogging the sensors.  Over treating the black tank with odor control chemical is unnecessary and wastes money.  Dump the tank when it becomes ¾ full.  Add an inch of fresh water to the empty tank and treat with the recommended amount of odor control chemical.

Gnats may enter the black tank via the ground sewer.  If you detect the presence of gnats in the black tank, fill the tank ¾ full of water, add 2 cups of rock salt, close the toilet lid and drive the vehicle long enough to slosh around the mixture.  Allow the black tank to rest with the valve closed for a few hours, dump the tank and then add an inch of fresh water, along with odor control chemicals, to the empty tank.

Disinfect the fresh water tank every three months, or when taking the RV out of long- term storage. Prior to disinfecting, remove the water filters.  Fill the fresh water tank and add one teaspoon of household bleach.  Turn on the water pump and run the disinfected water through all the faucets, including the shower.  Let the solution stand for four hours.  Drain the tank and refill with fresh water.  Run the fresh water through all the faucets until bleach is no longer detectable.  Re-install the water filters.

Closely monitor the tank sensors for accuracy.  Do this by frequently referencing the monitor panel.  Assure the fresh tank gauge is reading full when you have filled the tank, and that it is reflecting lowered amounts as water is used.  Likewise, confirm the gray and black tank sensors are reading empty immediately after the tanks are dumped, and that the gauges are recording fill amounts as services are used.  If a tank sensor is registering inaccurate information this may mean solids have built up around the sensor or the sensor is bad.  Have the tank sensor replaced by a qualified technician.