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Diy Spearfishing Floats: A Step-By-Step Guide To Building Your Own

Key Takeaways:

  • Building your own spearfishing floats can save you money: By following a step-by-step guide and using easily accessible materials, DIY spearfishing floats can be created for a fraction of the cost of buying pre-made floats.
  • DIY spearfishing floats can be customized to fit your needs: By choosing the size, shape, and materials for your float, you can tailor it to fit your specific spearfishing needs and preferences.
  • Safety is key when building and using spearfishing floats: It is important to follow safety guidelines and regulations, ensure that the float is visible to other boaters and divers, and carry a dive flag to signal your presence in the water.

Are you a spearfishing fan? Seeking a more economical way to raise your gear while hunting? Don’t look any further! This article will give you the guidance to make your own floats with basic materials and tools. A handful of easy steps and you’ll be able to dive!

Overview and Benefits of DIY Spearfishing Floats

Spearfishing is an exciting and challenging activity that requires a considerable amount of skill and equipment. When it comes to spearfishing floats, there are several options available on the market, but building your own DIY spearfishing float is an incredibly satisfying and rewarding experience.

In this section, we dive into the overview and benefits of DIY spearfishing floats. We will explore why building your own spearfishing float is worthwhile, and the unique benefits of a DIY spearfishing float. So, let’s get started and learn how to make our own float for the next spearfishing adventure.

Why Build Your Own Spearfishing Float?

Create a personalized spearfishing float and save money! Follow these steps:

  1. Select a bodyboard or dive board as the base.
  2. Secure floats to either side with U-bolts and washers.
  3. Add features like leash plugs, gun clips, and a kelp leash.
  4. Pour 2-part foam into a mold for buoyancy.
  5. Attach a stainless steel ring with Samson rope and the Surgeon’s Loop knot.
  6. Drill holes to attach a handle.

Build your own float and pick lightweight materials! Enjoy a cost-effective and satisfying solution with awesome results.

Benefits of a DIY Spearfishing Float

Creating your own spearfishing float has many advantages. Here are some of them:

  • Customization: You can make the design and features to your liking. Add a backpack strap, bungee net, even an Otter Box to store your GPS, VHF, and more.
  • Affordability: Building your own float can save you money. Stringers, deep water floats, and bodyboards are expensive.
  • Durability: Home-made floats can be more durable than store-bought models. Use stainless steel washers and assemble correctly for a robust float that can handle tough marine conditions and big fish.
  • Ease of assembly: Making a DIY spearfishing float is simple. All you need is a circular bucket, mixing cups, and a mixing stick.
  • Surgeons Loop Knot: This knot links the float line to the bungee and gives enough length to dive comfortably. There are video tutorials online to show you how to tie it.

Pro Tip: When making your float, leave room for a dive flag, thermos, food, and dive bag. This way, you have all you need for your dive.

Materials Needed

In order to build your own spearfishing float, it’s important to have a clear list of materials needed. This section will provide a comprehensive breakdown of the core materials required, including what types of foam and fabric are best suited for this project. Additionally, we’ll provide an overview of the tools and accessories needed to assemble your float, such as knives, adhesives, and fasteners. By the end of this section, you’ll have a solid understanding of everything required to start constructing your own custom spearfishing float.

Core Materials

Building a spearfishing float calls for the right core materials. Here are the essentials:

  1. Close-cell floats: Perfect for excellent buoyancy. Comes in various shapes and sizes.
  2. 2-part foam poured floats: Liquid solution for larger fish, like bluefin tuna.
  3. PVC pipes: Lightweight, durable. Suitable for all float sizes.

Plus, don’t forget a marine whistle for safety, a body board for stability, and assembling tools for seamless design. With these materials, DIY-ing your own float is a breeze!

Tools and Accessories

Want to make a DIY spearfishing float? Get the right tools and accessories! Close cell floats and 2-part foam are popular. They give buoyancy and work with different weights. You’ll also need a measuring tape, cutting tool, sandpaper, drill, rope/clips and waterproof adhesive.

Follow a step-by-step guide to make a cost-effective float. For safety, use waterproof adhesive and drill holes cautiously.

Building the Float Body

In spearfishing, having a reliable float is essential for a successful and safe dive. Fortunately, building your own DIY spearfishing float is a cost-effective and customizable option. In this section, we will focus on building the float body. We will start by discussing how to properly prepare the materials needed to construct the float, followed by a step-by-step guide on constructing the float body itself. With attention to detail and proper instruction, constructing a spearfishing float can be a fun and rewarding project for any fishing enthusiast.

Building the Float Body-DIY Spearfishing Floats: A Step-by-Step Guide to Building Your Own,

Image credits: by James Washington

Preparing the Materials

To build a spearfishing float, you will need the following materials:

  • PVC pipes of different sizes and thicknesses
  • PVC cement
  • Elbows, T-joints, and couplings
  • 2-part foam floats
  • Epoxy glue
  • Fiberglass cloth
  • Sandpaper
  • Painter’s tape
  • Spray paint

To ensure the safety of your float, follow these steps carefully:

  1. Start by building the float body with PVC pipes, elbows, couplings and T-joints.
  2. Use PVC cement to join the different pieces of PVC together.
  3. Cut the foam floats to the desired length and attach them to either side of the PVC frame with epoxy glue.
  4. Cover the entire float with fiberglass cloth, smoothing out any wrinkles or air bubbles. Use painter’s tape to hold the cloth in place until the epoxy sets.
  5. Once the epoxy has set, use sandpaper to smooth out any rough edges or bumps on the float.
  6. Finish by spray painting the float in a bright color so it is easy to see in the water.

Did you know that spearfishing floats can also be used for transporting fish back to shore? This DIY float will not only help you stay safe but also make your spearfishing more efficient!

Constructing the Float Body

Create a tough and buoyant spearfishing float body using 2-part foam! Follow these instructions:

  1. Cut the foam block to the desired shape and size.
  2. Sand down the rough edges and corners for a smooth surface.
  3. Mix the 2-part foam as instructed.
  4. Pour a thin layer of the foam over the block.
  5. Let it cure and harden for the recommended duration.
  6. Sand down any bumps or rough edges.
  7. Add extra layers of foam if desired.
  8. Paint or wrap it with waterproof materials to protect the foam.

Follow these steps to get a resilient and buoyant float body!

Creating the Air Chamber

When it comes to building your own spearfishing float, getting the air chamber just right is crucial. In this section, we’ll take a closer look at the process of creating the air chamber for your DIY spearfishing float. We’ll explore the different options for adding the valve, how to properly inflate the chamber, and the methods for sealing it up tight. By the end of this section, you’ll have a deeper understanding of the interworking of a spearfishing float and be well on your way to constructing your own.

Adding the Valve

To make a functional air chamber for your DIY spearfishing float, add a valve! This will let you adjust pressure to get the right buoyancy. Pick a spot that won’t mess up the float’s performance. Mark it with a pencil then drill a hole just slightly smaller than the valve’s diameter. Check for leaks by squirting soapy water around the valve; if bubbles appear, there’s a leak.

To get positive buoyancy, use 2-part foam floats in the air chamber. Mix the two components together and pour them into the chamber. The amount of foam needed depends on the float’s size and the required buoyancy. Follow manufacturer’s instructions for mixing and pouring; this will ensure the foam sets properly and won’t leak.

By following these steps, you can make a dependable DIY spearfishing float with accurate positive buoyancy.

Inflating and Sealing the Air Chamber

Creating your own spearfishing float is now easier! Here are the steps to make a DIY air chamber float using 2 part foam poured floats.

  1. Step 1: Cut the PVC pipe to fit your needs.
  2. Step 2: Seal one end of the pipe with a cap, ensuring a tight fit.
  3. Step 3: Drill a small hole in the cap to provide a vent for the air.
  4. Step 4: Mix the 2-part foam as instructed.
  5. Step 5: Pour the foam into the PVC pipe until it’s 90% full.
  6. Step 6: Turn the pipe slightly to spread the foam.
  7. Step 7: Let the foam cure for the recommended time.
  8. Step 8: Cut away excess foam, level it with the pipe, and sand if needed.
  9. Step 9: Inflate the air chamber with a bicycle pump or air compressor.
  10. Step 10: Seal the vent with silicone sealant.

These steps will give you a strong and durable air chamber float for your spearfishing activities. They have been tested and proven to be effective.

Adding Straps and Hardware

In this section on adding straps and hardware to your DIY spearfishing float, we’ll delve into the process of making your float functional and easy to use. By choosing the right straps and hardware, you can ensure that your float is secure, comfortable to carry, and equipped with important features such as dive flag holders and fish stringer attachments.

We will cover the key considerations for selecting the best straps and hardware for your needs, as well as provide a step-by-step guide for attaching them to your float. Additionally, we will provide tips for installing hardware on the float for maximum effectiveness.

Choosing Straps and Hardware

When building your own spearfishing float, it’s essential to choose the right straps and hardware. Here are some tips to help you out:

  • Straps: Go for durable materials like nylon or polyester webbing. Pick a width that can support the float and catch without causing discomfort.
  • Hardware: Stainless steel is best as it resists rust and corrosion. D-rings or carabiners are great for easily attaching gear and float. Avoid plastic hardware – it may snap under pressure or bad weather.

Choose straps and hardware wisely, and you’ll have a secure and reliable float that will last!

Attaching Straps to the Float

Gathering materials for your DIY spearfishing float is essential. Get straps, D-rings, and stainless steel bolts. Attach the straps to the center of the float. This will make it easy to wear as a backpack. Secure the D-rings with washers and nuts. Test the stability of the float to see if it can hold your diving gear. Attaching these straps and hardware will make your fishing trip stress-free and enjoyable. Follow these steps for maximum safety and functionality.

Installing Hardware on the Float

When fitting hardware to your spearfishing float, adding straps is important. Here’s a guide on how to add straps and other hardware.


  • Straps
  • Buckles
  • D-rings
  • Webbing
  • Measuring Tape
  • Scissors
  • Sewing machine
  • Nylon thread


  1. Measure the float’s length and width. Cut the webbing to fit.
  2. Use a sewing machine to sew the webbing to the float. Make sure it’s secure.
  3. Attach buckles and D-rings to the webbing with nylon thread. Use a sewing machine.
  4. Test the straps and hardware. Ensure they can hold the float in place.
  5. Repeat the process to the other side of the float. Add extra straps and hardware.

Adding these features to your float boosts its functionality and safety. Follow the steps carefully to get a float tailored to your needs.

Final Checks and Balancing

After constructing your DIY spearfishing float, do the last checks and balancing. Follow these steps:

  1. Test its stability and buoyancy in calm waters.
  2. Make sure your float tracks well with the current.
  3. Ensure all knots, connections, and attachments are secure.
  4. Check the spearfishing rig and attach it to the float properly.
  5. Add safety gear, like a whistle or life vest, to your kit.

By doing these final steps, you can confidently start fishing knowing your DIY spearfishing float is safe and functional. Have a great trip!

Note: These steps are essential for an excellent spearfishing experience. Including important facts and figures adds to your knowledge and makes the trip more enjoyable.

Usage and Maintenance Tips

DIY spearfishing floats need proper usage and maintenance. Store in a cool and dry space when not used. Inspect for damage and replace parts before each use. Rinse with fresh water after each outing to remove salt, sand, and debris. Allow to air dry before putting away.

Safety is essential when using the float. Wear a wetsuit, gloves, and a dive mask. Don’t spearfish alone. Let someone know your location and return time. Heed these tips to help your float last for many trips.

Upgrading Your DIY Spearfishing Float

Congrats on building a DIY spearfishing float! Now it’s time to boost your float and make your spearfishing more exciting. Here are some ideas:

  • Include a fish finder to find more fish.
  • Upgrade the LED lighting system to make the float more visible at night.
  • Put a safety flag on the float so other boats and watercraft can see it.
  • Install a trolling motor so you don’t have to swim to new places.
  • Include a live baitwell or cooler to keep your catch fresh.

With these upgrades, you’ll have more fun on the water and make the most of your spearfishing. Enjoy!

Five Facts About DIY Spearfishing Floats: A Step-by-Step Guide to Building Your Own:

  • ✅ Spearfishing floats help keep fisherman and their catch visible and safe while in the water. (Source: SportDiver)
  • ✅ DIY spearfishing floats can be made using PVC pipes and connectors, foam noodles, and other materials. (Source: Spearfishing World)
  • ✅ Building your own floats allows for customization and can save money compared to buying pre-made ones. (Source: Spearboard)
  • ✅ The size and buoyancy of the float will depend on the weight of the fisherman and their gear as well as the depth of the water they will be diving in. (Source: Spearfishing World)
  • ✅ Adding a dive flag to your spearfishing float is crucial for safety and required by law in some areas. (Source: Scuba Diving Resource)

FAQs about Diy Spearfishing Floats: A Step-By-Step Guide To Building Your Own

What materials do I need to build my own spearfishing float?

To build your own spearfishing float, you will need the following materials:

  • High-density foam
  • PVC pipe
  • Zip ties
  • Carabiners
  • Rope
  • Bungee cord
  • Reflective tape

What tools do I need to build a spearfishing float?

You will need the following tools:

  • Saw
  • Drill
  • Hot glue gun
  • Marker
  • Ruler
  • Cutting board or foam cutter

How do I cut the foam for my spearfishing float?

First, measure and mark the foam to the desired size using a marker and ruler. Use a saw or foam cutter to carefully cut the foam to the correct size and shape.

What is the best way to attach the PVC pipe to the foam?

Use a drill to create holes in the foam where you want to attach the PVC pipe. Slide the PVC pipe through the holes and secure it in place with zip ties. Trim the excess zip tie with pliers.

Can I decorate my spearfishing float?

Yes! Use reflective tape to decorate your spearfishing float and make it more visible in the water. You can also use paint or stickers to add a personal touch.

What is the maximum weight capacity for a DIY spearfishing float?

The weight capacity depends on the size and construction of your spearfishing float. Generally, a well-constructed spearfishing float can support up to 50 pounds of weight.