Bruce in Bangkok wrote:

I used a salt water pressure system for years, as Wayne's suggests,
and found it a far more effective solution than a brush.

Stupid person, indeed. It makes no sense at all to use
hundreds of amperes in order to run high-pressure pump
in order to wash mud off anchor chain when anchor chain
is just not ever necessary.

One has a choice of anchorages. There is NEVER an instance
when one HAS to anchor on coral heads. As a matter of fact
it is stupid and irresponsible to anchor in coral areas.

The attitude that a sailor has a right to destroy coral
with chain needs to be challenged as it is not only
irresponsible but CRIMINAL.

Get a glue, asshole!

--
Sir Gregory