SidecarFlip wrote:
In my humble opinion, the best way to remove the sediment (from the sacrificial anode rod) in a Suburban HWH is through the anode rod port with a jet stream of water from a garden hose stream concentrator (or your pressure washer) stuck in the anode rod port.
Better yet, get an Atwood HWH with no anode rod.
Best way to flush out
any water heater tank, Suburban
or Atwood, is to use an RV water heater tank rinser
like this.
To the OP - use that water pressure relief valve and chances are pretty good you'll never get it to properly reseal without leaking. :M Leave it alone, relive pressure in the system by simply opening a couple of faucets. That said, why remove the anode rod so often anyway? - just leave it as is for the season, then drain & flush the tank when you're winterizing the rest of the trailer.