Under the central walkway in the engine room there’s an unusual but very useful device—a self-macerating seachest. Called the Hydromatic Self-Cleaning Sea Strainer by manufacturer Groco, it performs an automatic 30-second cleaning cycle at user-selected intervals and flushes debris overboard. Should the need arise, a purge cycle can override the intervals for a one-time maceration. As noted above, the unit on our 53 also does duty as a seachest, meaning it takes in raw water and distributes it to a variety of auxiliaries, thereby seriously reducing the number of through-hull fittings necessary for systems operation onboard. Got a problem with seagrass clogging your sea strainers? Here’s the fix.