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SHURFLO Float Switch

Model # 10187961Mfg # 359-111-40

$38.99

Customer Reviews
In stock online.

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Product Description

Offered with or without a protective cage, this non-mercury float switch utilizes mechanical contacts for reliable bilge pump activation. Includes 3', tinned wire leads. May be mounted apart from pump or snapped into base plate of Shurflo 380, 500, 700 and 1000gph pumps. 4.4"L x 3.6"W x 1.3"H. For use with 12V and 24V DC pumps. ABS plastic. Two year limited warranty.

  • Activation Method: Float with mechanical contacts
  • Capacity: 12A @ 12V DC
  • Warranty: Two year limited

Manufacturer's Documents

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

REVIEW SNAPSHOT®

by PowerReviews
ShurfloFloat Switch
 
3.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

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    (0)

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    (1)

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Reviewed by 2 customers

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2.0

Watch out, underdamped

By docharper

from Moorpark, CA

About Me Avid Do-It-Yourselfer

Verified Reviewer

Pros

  • Easy To Install

Cons

  • Underdamped

Best Uses

    Comments about Float Switch:

    I purchased this float switch recently at West Marine to replaced a failed Sure Bail model that was OEM equipment in my Catalina 42 MK ll sailboat. Installation was easy and the switch worked well until I partially filled the bilge with a hose to conduct a final test. I discovered a major problem with the design. Because the float has very little damping the bilge pump system went into continuous oscillations. The pump would almost completely evacuate the bilge, shut off, and then water would run from the outlet hose back through the bilge pump causing the float switch to immediately turn on and then the cycle would repeat.

    I could have probably remedied the problem by relocating the float switch further away from the pump in a shallower region of the bilge. But the solution I chose was to remove the SHURflo switch and order a nearly identical Sure Bail model to the one that was originally installed in my Catalina. Problem solved. The Sure Bail I purchased is of the older mercury switch design, not the newer "electronic" model, but it turned out in this case that older engineering worked well.

    The SHURflo might work fine in boats where the outlet hose volume is small compared to the total volume of the bilge. But if you purchase this model I'd strongly recommend performing a temporary installation (twist the wires, don't screw the base down, save the packaging) and conduct a quick test to see if your system suffers from the same oscillation problem that I encountered ... or simply purchase an older Sure Bail model and be safe.

    (1 of 2 customers found this review helpful)

     
    5.0

    Float Switch Keeps You Bailed

    By Mikey

    from Gulf Shores, Alabama

    About Me Avid Do-It-Yourselfer

    Pros

    • Durable
    • Easy To Install
    • Easy To Use

    Cons

    • none

    Best Uses

      Comments about Float Switch:

      Was a replacement for OEM with broken wire. As long as you can get to the low bilge mounting location it is easy to remove old switch and install new. Odds are the screw holes will not match so make sure you seal the old ones. Connect the wires with heat shrink connectors and you are ready to get back on the water.

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