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Johnson Micro Automatic Float Switch

Item # 20105
Customer Rating:

Key Features

  • Solid reliable performance

  • No mercury involved


Our Price   $19.99

Availability: In Stock

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Product Description
johnson_pumps The Micro Float Switch uses a specially designed material to handle DC current providing solid reliable performance. Switch is activated by a rolling steel ball that changes pressure on the switch, so there's no mercury involved.

product reviews

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REVIEW SNAPSHOT®

by PowerReviews
Johnson PumpsJohnson Micro Automatic Float Switch
 
4.9

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Installs easily (3)

Cons

    Best Uses

        • Was this a gift?:
        • No (4)

      Reviewed by 7 customers

      Sort by

      Displaying reviews 1-7

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      3/21/2013
       
      5.0

      works great.

      By old f**t

      from sc

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Corrosion Resistant
      • Practical
      • Quiet
      • Water Efficient

      Cons

        Best Uses

          Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

          The instructions do not show how to wire it without using a control panel. Do not waste your money by buying a control panel. Use your common sense.

          • Was this a gift?:
          • No

          Bottom Line Yes, I would recommend this to a friend

          Was this review helpful? Yes / No

           - You may also flag this review

          9/26/2012
           
          5.0

          Simple Design, Micro Switch/Roller Ball

          By Robert

          from Ft.Worth, TX

          About Me Beginner

          Verified Buyer

          Pros

          • Installs Easily

          Cons

          • Corrodes

          Best Uses

          • High Usage
          • Small Boat

          Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

          Bought this switch as a identical replacement. The old one had been in the boat for who knows how long. Switch started to stick internally. I opened it up and found the roller ball had rusted which indicates at some time it leaked. Opening the case up was difficult, well sealed, and suspect the leak was where the leads enter the case. Suggest possibly adding a silicon sealant around the leads to extend the life of the switch. But for the price this may be over kill....

          • Was this a gift?:
          • No

          Bottom Line Yes, I would recommend this to a friend

          Was this review helpful? Yes / No

           - You may also flag this review

          7/16/2012
           
          5.0

          a great backup

          By GVI

          from Elma,NY

          About Me Advanced

          Verified Buyer

          Pros

          • Corrosion Resistant
          • Installs Easily
          • Practical
          • Quiet

          Cons

            Best Uses

            • Large Boat
            • Small Boat

            Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

            Although the regular bilge does do its job, you have to manually turn it on. The automatic switch does that job for you. Always a great backup to have on any boat.I installed mine on a stainless bracket that I bent to shape to mount on my boat for easy removal.

            • Was this a gift?:
            • No

            Bottom Line Yes, I would recommend this to a friend

            Was this review helpful? Yes / No

             - You may also flag this review

            8/31/2011
             
            5.0

            Float Switch

            By St. James City Bob

            from Gloveland, Fl

            About Me Advanced

            Verified Buyer

            Pros

            • Installs Easily

            Cons

              Best Uses

                Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

                Very good product made in the USA

                • Was this a gift?:
                • No

                Bottom Line Yes, I would recommend this to a friend

                Was this review helpful? Yes / No

                 - You may also flag this review

                3/27/2010

                (2 of 2 customers found this review helpful)

                 
                5.0

                Mayfair Bilge Pump Switch

                By John

                from Miami Fl

                Verified Reviewer

                Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

                The Mayfair is a properly engineered float switch.
                The Rule, while not properly engineered is "properly marketed"
                I been through numerous Rule switches. The current Mayfair switch in my engine room is over 10 years old and cycles at least a few times a week. The mercury contacts in the Rule seem to arc and burn up especially if the water very slowly rises. The Mayfair snaps either on or off using proven industrial micro switches. The lead entry into the switch is an excellent seal, the only drawback being is to make sure that there is some slack in the wire but that is needed for most other brand switches anyway.

                Bottom Line Yes, I would recommend this to a friend

                (2 of 2 customers found this review helpful)

                Was this review helpful? Yes / No

                 - You may also flag this review

                12/10/2009
                 
                5.0

                Works as advertised!

                By Jimboat

                from Durham/Morehead, NC

                About Me Do-It-Yourself

                Verified Buyer

                Pros

                  Cons

                    Best Uses

                    • Outdoors

                    Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

                    Switch was easy to install and works well. Getting wiring correct took reading directions twice but works well now.

                    Bottom Line Yes, I would recommend this to a friend

                    Was this review helpful? Yes / No

                     - You may also flag this review

                    6/8/2009
                     
                    4.0

                    WORKS GREAT

                    By SULLY

                    from ELMIRA, NY

                    About Me Do-It-Yourself

                    Verified Buyer

                    Pros

                    • DOES THE JOB

                    Cons

                      Best Uses

                        Comments about Johnson Pumps Johnson Micro Automatic Float Switch:

                        I NO LONGER HAVE TO WORRY ABOUT THE BOAT WHEN I AM NOT THERE.

                        Bottom Line Yes, I would recommend this to a friend

                        Was this review helpful? Yes / No

                         - You may also flag this review

                        Displaying reviews 1-7

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                        q & a

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                        Do you have questions about this product? 4 easy ways to get the answers you need:

                        • Live Help - Real time help for basic questions. click here
                        • Customer Service - Use our online contact center to contact customer service and receive a response usually within 24 hours.
                        • Product Expert - Use our online contact center to contact our Product Experts to receive a response usually within 48 hours.
                        • Answer Box - Get answers from real customers by clicking "Ask a Question" below.

                        get answers from real customers and in-house experts with AnswerBox.

                        5 Questions | 2 Answers
                        Displaying questions 1-5

                        • Q:

                          I have two floaters in my boat I think it is called sure ball. They are installed somewhat low and high - what can you recommend for compatibility

                          I have a 1997 formula 280 merccruisers twin.
                          Asked on 9/2/2012 by Ben from Staten island NY

                          0 answers

                        • Q:

                          IS THIS THE SAME S THE FLOAT SWITCH THAT GOES IN THE GAS TANK
                          Asked on 7/25/2012 by tj from kelford nc

                          1 answer

                          • Staff Reviewer

                            A:

                            No that is a totally different switch. This is used to turn on a water pump to pump out the water in the bilge. The float switch that you are refering to tell the gauge on your dash how much fuel is in the tank. 74917

                            Answered on 11/6/2012 by Justin M. from Overton's

                        • Q:

                          How much water in boat be for it turns on???
                          Asked on 5/21/2011 by spancom from Crosslake,MN

                          0 answers

                        • Q:

                          my pump and former float switch have 3 wires - one is blk grnd and the other two are brown and brown with red. Can't find a replacement float switch with the 3 wires. Help?
                          Asked on 5/21/2010 by Richard the old guy from Bremerton WA

                          0 answers

                        • Q:

                          how many amps is this switch? 14 or 15 amps?
                          Asked on 6/28/2009 by misty from Davie, Florida

                          1 answer

                          • A:

                            It looks like the product picture says 15 amps...but have not seen in person.

                            Answered on 7/11/2010 by enzo on LI from Spencer, IA
                        Displaying questions 1-5

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