How do I install and wire a SHURflo Automatic Float Switch in my boat?

[StDelaney]

Installing a SHURflo Automatic Float Switch in your boat's bilge system ensures automatic water removal. Here's a guide to proper installation and wiring:

1. Location and Mounting:

   • Position the bilge pump at the lowest point of the bilge, away from engine heat.
   • Secure the pump to the hull or a pad using stainless steel screws.
   • Mount the SHURflo float switch horizontally, keeping the angle less than 20 degrees from vertical. Avoid screwing directly through the hull.

2. Electrical Wiring:

   • Use 16 AWG wire for runs under 20 feet; use 14 AWG for longer distances.
   • SHURflo uses tinned wire leads to resist corrosion.
   • Make all connections with waterproof connectors, positioning them above the typical bilge water level to prevent corrosion from water wicking.
   • Twist wires together to minimize radio frequency interference (RFI).
   • Utilize waterproof splices and connectors.
   • Install the fuse between the battery and the panel switch, using the fuse size recommended on your bilge pump label.

3. Installation Tips:

   • Consider installing the bilge switch cage for optimized performance.
   • Test the pump and switch before putting your boat in operation.
   • Do not use the pump to remove oil, diesel, gasoline, or other flammable liquids.
   • Keep all wire connections above the highest possible water level and seal wires with marine sealant to avoid corrosion.

4. Replacing a Piranha Bilge Switch:

   • If you're replacing a SHURflo Piranha Bilge switch, carefully follow the specific instructions in the SHURflo manual for that model.

By following these steps, you will help ensure your SHURflo Automatic Float Switch operates correctly and reliably, keeping your bilge dry. For any further assistance or specific questions, SHURflo customer service is available.