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Old 03-01-2010, 17:56   #1
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Raw Water Intake Strainer Mounting Location?

am i correct in assuming that i want to mount my internal strainer for the engine raw water intake so that the top is just above the waterline? (that way i can open it to empty the basket w/o flooding the boat haha), please confirm?

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Old 03-01-2010, 18:00   #2
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Many strainers require you to mount the top above water line--read the instructions.
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Old 03-01-2010, 18:10   #3
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Ditto.... mine is mounted near the top of the engine, above the water line ....easily accessible.
You want to mounted it where you can/will check it.
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Old 03-01-2010, 18:39   #4
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Ahhh why not just close the seacock while cleaning it

Then you open the seacock just a bit to purge it before closing the top.

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Old 03-01-2010, 19:28   #5
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Originally Posted by sailvayu View Post
Ahhh why not just close the seacock while cleaning it

Then you open the seacock just a bit to purge it before closing the top.

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That works well if the stainer manufacturer allows below the waterline mounting. Many don't.
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Old 03-01-2010, 19:28   #6
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Many strainers require you to mount the top above water line--read the instructions.
Not so! All of mine are below the waterline. Strainers have a pressure rating (plastic vs bronze) and do need to be serviced occasionally!

Here is an article that will help! Raw Water Strainers by Don Casey
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Old 03-01-2010, 19:32   #7
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That works well if the stainer manufacturer allows below the waterline mounting. Many don't.
It's the above water rating that counts. If they leak air the pumps lose suction.

Quote:
Originally Posted by Don Casey & others
Be sure, however, that the filter is designed for above-the-waterline installation.
It's better to have a strainer leak water then air! Should I mention the word cavitation and it's results on pumps?
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Old 03-01-2010, 19:43   #8
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Ziggy's post says many not all....nothing really misleading there.

Casey's article appears to indicate his preference for an above the waterline screen, as long has it is designed for that purpose... I can open mine without closing the seacock...and it's easily accessible...also a key point made by casey...
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