Coarsefilters.
Just a word on the coarsefilters. These rough filters designed to give minimum of resistance, are often installed in supplypipes which takes deliveries from outside the boat in order to protect transferpumps etc from " nuts and bolts" entering the system. Sometimes we got impurities particulary when fueling which really were nuts and bolts, so it was highly justfied to have these filters.
Tore