Water hoses in engine room

Vic Fryzel


For the first time, I'm looking at replacing a lot of or ~all of the hoses/valves that deliver fresh or raw water in the engine room.

Some of mine have become extremely rusted or are a bit split. A lot of the hose clamps are rusted closed. And some of the valves are barely usable because of some corrosion or rust. I'm hoping folks might be able to help me with a few questions:

1. Is there a type or class of hose I need to use? Any other hose requirements? Are transparent hoses okay?
2. Should I be double clamping each hose end?
3. Is there a valve material or SAE/metric requirement for both fresh and salt water?
4. When cutting the hoses, do I need any sort of special tool?
5. Similar questions for the bilge pump hoses specifically. Not sure if there are requirements of these?
6. Any retailers that sell this stuff that come to mind? I have a West Marine close by, but am happy to go elsewhere. For reference my boat is in San Diego right now.
7. After I replace this stuff, is there any specific type of maintenance other than visual inspection to keep things in good working order?
8. For my hot water heater, do folks have any references they could link me to on how to clean it? I don't think it's been cleaned/serviced in 6+ years.

-Vic "Moon Dog" SM248

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