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Results 1 to 4 of 4
  1. #1
    Join Date
    Aug 2009
    Location
    Monroe, Michigan, USA
    Posts
    14

    Default Through hull water intake

    "Hello. I would like some advice on just what is the best way to put in a thru hull water intake. I know I will use a strainer as well, but what brand is the least likely to give me problems? I have to pull my 18' Bayliner capri tomorrow and I will winterize my AQ 125 A, but the local weed problem has almost cost me a motor and I want to relieve that issue. I see many brands on ebay, but this is not the time to get cheap, nor foolish. Thanks guys."

  2. #2
    Join Date
    Jun 2008
    Location
    Island Heights, NJ,
    Posts
    1,685

    Default "Go to: Inside... [url=""]

    "Go to:
    Inside...

    http://home.comcast.net/~rfierro/pwp...rnal_2266. JPG

    The red valve handle is a hose bib which allows me to winterize/flush the engine by putting a short hose into a 5 galpail with w water hose running in it.

    Outside...

    http://home.comcast.net/~rfierro/pwp...Inlet_2257.JPG

    The white block is STARBOARD that has been bedded to the hull. Its not obvious in the picture, but the "scoop" is "toed in" and not pointing straight forward. Water flow at that point on the hull is back and outwards from the keel, not straight back."
    Capt Bob
    1969 23ft ChrisCraft Lancer
    Merc 5.7L 260HP/ Volvo 280
    1972 22ft Bristol
    Honda 7.5HP 4 stroke Long shaft

  3. #3
    Join Date
    Mar 2009
    Location
    Portland, Oregon,
    Posts
    7,429

    Default "Are you convinced that thru h

    "Are you convinced that thru hull pick up will solve this problem?
    While the square area of the thru hull grate may be close to the same.... maybe even slightly larger......., the suction/intake volume do remain much the same.

    Robert, would there be any advantage to installing two "in parallel" thru hull pick-ups, thus reducing suction at each?
    "
    Rick ... aka Ricardo
    Portland, Oregon
    28' SDN F/B w/ twin Volvo Penta 5.7L DP's

  4. #4
    Join Date
    Jun 2008
    Location
    Island Heights, NJ,
    Posts
    1,685

    Default "I subscribe to the fewer the

    "I subscribe to the fewer the thru hull holes the better philosophy. One should make sure that the hose is rated for suction side service, i.e. wire reinforced and is the same size (I/D) as the inlet port on the raw water pump. In my case, the line is 1 1/4" and everything from the pump to the thru hull is 1-1/4". What is not obvious in the photos is that the thru hull fitting is of this type

    http://tinyurl.com/Bronze-thruHull

    And that the "scoop/strainer" is a bolt on, not part of the thru hull. If I had to do it over again, I'd get one where the strainer section could be removed for cleaning as every once in a great while, some wiley crustatian decides to take up residence inside the thruhull itself.

    Note: I'm not recommending Defender as I've never used them...but I've never heard a bad thing about them either..."
    Capt Bob
    1969 23ft ChrisCraft Lancer
    Merc 5.7L 260HP/ Volvo 280
    1972 22ft Bristol
    Honda 7.5HP 4 stroke Long shaft

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