through hull fittings

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Jim Floyd

OK - thanks to you guys who replied earlier to my query about closing the through hulls - we are committed to doing that - the hint about hanging the keys was great! now for the dumb questions (I am the wife) - how many are there and where are they? I have looked in the owners manual - we did our commissioning with a charter owner who said don't bother... the one for the head is under the head sink? the one for the galley sink is under that sink? I don't know about the engine one and are there any others? I love the way Catalina owners support each other!! Many thanks!
 
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RonD

Here's the checklist

One aft near the transmission & raw water filter for the raw seawater coolant. Make sure the raw water filter is clean before starting the engine, as seaweed & junk get sucked in (I had a baby fish once). One under the galley sink for sink drainage. One under the starboard settee cushion next to the holding tank & macerator pump. Two under the head sink. One is for the toilet, the other for sink drainage. Note the "Y" valve there -- the refrigerator shares drainage through that. Not a valve but still a through-hull: The speed/temperature sensor is under the sole hatch in the forward cabin ("V" berth). The sensor can be removed while the boat is in the water (the fitting has a little rubber flapper valve to minimize the gusher) and a dummy plug can be inserted. The sensor paddle wheel does collect seaweed & other marine crud (we get lots of brine shrimp!) & needs regular cleaning. In your C320 boat manual there are some fold-out diagrams of the plumbing where the positions of the valves & seacocks on the hull are illustrated. I used colored markers to identify & trace coolant, waste, potable, and "grey" water lines on the diagram to aid trouble-shooting. Each time to open/close the seacocks, just run your hand up from the valve & feel the hose for softening/cracking & the clamps for tightness. Good luck with your new C320. It's a great boat. --Ron C320 #831, "Lady Jane"
 
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