RV Water heater

So after flushing out the water heater tank through the drain, it has become much quieter. We are now mostly using gas instead of electric to heat the water and we do turn it off when retiring for the night. This rig does seem to sip propane as the first 30# tank took over 4 months to get to a level where I believe it needs to be refilled.

Thanks for all the pointers.