Quote:
Originally Posted by PaulM
Anyone see a downside to using a high quality garden hose to carry raw water to run the HVAC condenser? |
I do. This hose will be below the waterline and can be subject to vacuum if there is a partial or total blockage upstream of the
pump. Garden hose is not good for either requirement.
The good folks at Trident have a bit of self interest in making those same points so they took the time to write the same thing in more detail:
"Raw Water "Pick up" Intake-These hoses are connected to a hole in the
boat hull below the water line (preferably via a good sea cock which should be routinely inspected, tested and secured when the boat is not in operation). It delivers raw (outside) water for the
engine cooling, sanitation,
air conditioning and live well systems. Use only hose recommended for "below water line" connections and preferably one constructed with a hard spiral helix to prevent kinking and collapse under suction if the raw-water
screen becomes clogged. Because a breach in the hose can flood or sink your boat, we recommend using the best hose possible. The heavy wall rubber raw water pick-up hose with 2 ply and wire helix reinforcement (essentially a small, heavy wall
exhaust hose-our series #100 and #250) is the best. XHD smooth vinyl hose with a hard PVC helix like our #148 white sanitation hose or our #147 series may also be used except where heat is a factor."
I have already spent as much time fixing hoses while at sea as I plan to do in my lifetime. Your mileage may vary of course.
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