Some brands of water heater have "handholes", where you can drain the water
heater, open the handhole, reach in and clean out the sediment, and close
the handhole. I can't remember seeing a residential gas water heater with
them.

"RJ" wrote in message
...
Water in Arizona is alkaline,
with a high dissolved miineral content.

The minerals settle out, and form a cement-like coat.

As new residents, we're just
getting used to the clunk-clunk-clunk
of the water heater.

Flushing won't touch the mineral coat that builds up.

Just live with it ??

Will it shorten the life of the ( gas ) water heater ?

What to do ?? what to do ?

rj