Periodically, your RV water heater will need maintenance to keep it in tip-top shape. Here is a demonstration of preventive maintenance for the water tank of a Suburban LP/Electric water heater. The replaceable anode rod is designed to absorb corrosive action through electrolysis. I try to flush my water heater every month if it has not been drained the month prior. For safety, first turn off all electric power and LP gas to your water heater and be sure to wait at least 24 hours prior to doing this service to allow the water inside the tank to completely cool. Watch the video below to see how I replace this rod in my coach. Each water heater is a bit different so before attempting any prevent maintenance on your own unit, be sure to review your maintainence manual for your specific coach and water heater unit.
This is the hot water heater with the cover off.
Anode Rod for Suburban Water Heaters
Suburban Anode Rod is made of aluminum. When replacement is necessary, unscrew the old one and insert the new one. Anode Rods are easily replaced and should be checked every three months. .75" dia. 9-1/2" long.
Suburban 10 Gallon LP/Electric Water Heater
High-recovery 12,000 BTU/hour models offer porcelain steel tank, foam insulation, large diameter drain and replaceable anode rod to absorb corrosive electrolysis action. One-piece, die-formed housing protects controls and connections yet offers easy access. Fits cut-out openings of prior models. Access door and frame install easily on any type RV side. USA.