Chris wrote:
My cockpit lockers are connected with reinforced hose to the cockpit
drains also reinforced hose down to sea cocks of bronze.
The lockers are draining slowly years of small particle's I assume
building up in the hose. I've flushed with hose from the dock lots of
pressure but still slow going. Some Say Muriatic acid any suggestions
out there

I suppose it might work - A neighboring skipper does some fridge work
and as part of his "general overhaul" he flushes the condenser with
muriatic acid.

I have an el cheapo powerwash ($80 at a "seconds outlet", $140 at
Costco) that does a good job of blasting drain hoses. All of my deck
lockers have nice drains around the top lip but the hoses (actually
the fittings) are just too small and they get clogged with leaves,
especially during winter layup.