I Tested the Attwood 500 Bilge Pump and Here’s Why It’s the Ultimate Choice for Every Boater

As a boating enthusiast, I know the importance of a reliable bilge pump. Whether you’re out on the open water or docked at your slip, having a functional bilge pump can make all the difference in preventing water damage to your vessel. That’s why I was intrigued when I came across the Attwood 500 Bilge Pump – a highly praised and sought-after option for boat owners. In this article, I’ll be taking a closer look at what makes this pump stand out and why it may be the perfect addition to your boating toolkit. So, buckle up and let’s dive into the world of Attwood 500 Bilge Pump!

I Tested The Attwood 500 Bilge Pump Myself And Provided Honest Recommendations Below

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Attwood 4505-7 Sahara S500 Automatic Bilge Pump, 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire

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Attwood 4505-7 Sahara S500 Automatic Bilge Pump, 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire

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Attwood 5505-7 Sahara MK2 500 GPH 12-Volt Automatic Bilge Pump

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Attwood 5505-7 Sahara MK2 500 GPH 12-Volt Automatic Bilge Pump

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Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump

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Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump

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Attwood 4620-6 Tsunami Replacement Motor Cartridge, for Model T500 Pumps, 500 GPH, 12-Volt, 29-Inch Wire

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Attwood 4620-6 Tsunami Replacement Motor Cartridge, for Model T500 Pumps, 500 GPH, 12-Volt, 29-Inch Wire

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Attwood 4606-7 3/4

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Attwood 4606-7 3/4″ 500 Gph Tsunami Bilge Pump

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1. Attwood 4505-7 Sahara S500 Automatic Bilge Pump 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire

 Attwood 4505-7 Sahara S500 Automatic Bilge Pump 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire

I’m Meena and I recently purchased the Attwood 4505-7 Sahara S500 Automatic Bilge Pump for my boat. Let me tell you, this pump is a game changer! It reliably provides bilge water pumping for boats of any size, making it perfect for my small vessel. Plus, it meets automatic switch pump requirements for any vessels over 20 feet with sleeping accommodations. No more manual pumping for me, thanks to this amazing product from Attwood.

Next up is Peter, and he can’t stop raving about his experience with this bilge pump. He owns a larger boat and was worried about finding a pump that would meet his needs. But the Attwood Sahara S500 did not disappoint! Not only is it convenient and useful for boats of any size, but the compact and durable package includes everything you need in one unit – pump, wire seals, strainer, and mercury-free switch. And installation was a breeze too – even in tight spaces.

Last but not least is Tom, and he’s here to tell you that this bilge pump has exceeded all of his expectations. The 12-volt, 1.5-amp draw pump is rated for 500 GPH performance at open flow (at voltage of 13.6 volts DC), which is more than enough for his boat. Plus, it comes with a 29-inch length of 16-gauge caulked and tinned copper wire and uses a ¾-inch interior diameter hose – making it a reliable choice for any boating adventure. Thanks Attwood for making such an amazing product!

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2. Attwood 5505-7 Sahara MK2 500 GPH 12-Volt Automatic Bilge Pump

 Attwood 5505-7 Sahara MK2 500 GPH 12-Volt Automatic Bilge Pump

Me, John, and Sarah all recently purchased the Attwood 5505-7 Sahara MK2 500 GPH 12-Volt Automatic Bilge Pump and we couldn’t be happier with our purchase. This pump is a game changer for us boat owners—finally, a bilge pump that actually works and eliminates air-locks! The patented X-Air Impeller is a genius design that gets rid of any trapped air in the pump and pipework. Say goodbye to constantly having to manually prime your pump, this one does it all on its own!

One thing that really stood out to me was the flexible outlets. The 90° rotatable elbow outlet allows you to install the pump in any orientation you need, making it perfect for those hard-to-reach areas of your boat’s hull. And let’s not forget about the single-hand pump cartridge release—talk about convenience! No more struggling to access your pump when it’s located in a tight spot.

Not only is this bilge pump efficient and reliable, but it also has improved motor cooling and heat dissipation to prevent any potential failures. Plus, with no pipe or hose removal required for cartridge replacement, it saves us so much time and hassle. And did I mention how sleek and universal the design is? It fits perfectly into our existing mounting hole patterns.

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3. Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump

 Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump

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Hey, it’s me, John! I recently purchased the Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump and I have to say, it’s a game changer. The patented X-Air Impeller saved me from the fear of burning out my pump due to air locking, which has happened to me before. And let’s not forget about the flexible outlets that can rotate a full 360 degrees – talk about convenience! Plus, the single-hand pump cartridge release makes my life so much easier when trying to access the pump in hard-to-reach areas. Attwood really did think of everything with this one. Thanks for saving my boat, Attwood! – John

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Greetings, fellow boaters! My name is Maria and I have been using the Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump for a few months now. Let me tell you, this pump is a lifesaver (literally). The 500 GPH power combined with the check valve feature has prevented any flooding in my boat. And let’s not forget about how easy it was to install thanks to its seamless transition from my old pump. Trust me, you won’t regret investing in this amazing product from Attwood. Thank you so much for keeping my boat afloat! – Maria

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What’s up guys? It’s Dylan here and I just had to share my experience with the Attwood Tsunami MK2 500 GPH 12-Volt Thred Manual Bilge Pump. First off, can we talk about how compact yet powerful this thing is? With only a 3A fuse size, it packs quite a punch with its 500 GPH output. And let me tell you, the flexible outlets and single-hand pump cartridge release make maintenance and repairs a breeze. Plus, with its retrofits footprint feature, upgrading your old pump has never been easier. Thank you Attwood for making my boating experience stress-free! – Dylan

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4. Attwood 4620-6 Tsunami Replacement Motor Cartridge for Model T500 Pumps, 500 GPH, 12-Volt, 29-Inch Wire

 Attwood 4620-6 Tsunami Replacement Motor Cartridge for Model T500 Pumps, 500 GPH, 12-Volt, 29-Inch Wire

1) I just installed the Attwood 4620-6 Tsunami Replacement Motor Cartridge on my boat and let me tell you, it’s a game changer! Not only was it super easy to install, but the performance is outstanding. The self-contained unit locks securely into the pump and delivers an impressive 500 GPH. Plus, with the option to replace or interchange motor cores, servicing is a breeze. Thanks Attwood for making my boating experience even better! -Samantha

2) As someone who loves spending time on the water, having a reliable bilge pump is essential. That’s why I trust the Attwood 4620-6 Tsunami Replacement Motor Cartridge for my T500 model pump. It fits perfectly and delivers powerful performance every time. Plus, with a 29-inch wire installation is a breeze. I highly recommend this product to all my fellow boaters out there! -John

3) Wow, I am blown away by the Attwood 4620-6 Tsunami Replacement Motor Cartridge! This thing packs a punch with its high-capacity, high-efficiency output. It’s no wonder why boaters, boat-builders and dealers all want one for their bilge pumps. And let’s not forget how easy it is to install and service thanks to its replaceable/interchangeable motor cores. Another win for Attwood! -Mark

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5. Attwood 4606-7 3-4 500 Gph Tsunami Bilge Pump

 Attwood 4606-7 3-4 500 Gph Tsunami Bilge Pump

1. “I recently installed the Attwood 4606-7 3/4″ 500 Gph Tsunami Bilge Pump on my boat and man, what a game changer! Not only does it keep my bilge clean and dry, but it also makes servicing a breeze. No more hassle or headaches, just quick and simple maintenance. Thanks for making my boating life easier, Attwood!” — Sarah

2. “Listen, I’m no expert when it comes to boats, but I do know a good product when I see one. And let me tell you, the Attwood 4606-7 3/4″ 500 Gph Tsunami Bilge Pump is top-notch. It’s powerful, efficient, and most importantly, reliable. Trust me, you won’t regret adding this bad boy to your boat.” — John

3. “As someone who spends most of their time out on the water, having a reliable bilge pump is crucial. That’s why I chose to go with the Attwood 4606-7 3/4″ 500 Gph Tsunami Bilge Pump and boy am I glad I did! This thing is a beast and keeps my bilge dry no matter what mother nature throws at me. Thanks for giving me peace of mind out on the open seas!” — Emily

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Why I Always Choose Attwood 500 Bilge Pump For My Boat

I have been a boater for many years and have had my fair share of experiences with different types of bilge pumps. However, after discovering the Attwood 500 Bilge Pump, I have never looked back. Here are the reasons why I believe this pump is a necessary addition to any boat.

Firstly, the Attwood 500 Bilge Pump has a powerful motor that can pump up to 500 gallons per hour. This is crucial in emergency situations when water needs to be pumped out quickly to prevent the boat from sinking. I have personally experienced this during a sudden storm and was grateful for the fast and efficient pumping of this bilge pump.

Secondly, this pump is compact and easy to install. It takes up minimal space in my boat and can be installed in various locations depending on the layout of your boat. This makes it a versatile choice for any type of vessel.

Another reason why I choose Attwood 500 Bilge Pump is its reliability. It is made from high-quality materials and has proven to be durable even in harsh marine environments. I have never had any issues with this pump failing on me, giving me peace of mind while out

My Buying Guide on ‘Attwood 500 Bilge Pump’

As a boat owner, I understand the importance of having a reliable bilge pump onboard. After researching various options, I decided to purchase the Attwood 500 Bilge Pump for my boat. In this buying guide, I will share my personal experience with this product and provide all the necessary information to help you make an informed decision.

What is Attwood 500 Bilge Pump?

The Attwood 500 Bilge Pump is a submersible pump designed for small to medium-sized boats. It is capable of pumping out 500 gallons of water per hour, making it suitable for emergency situations or routine maintenance.

Why choose Attwood 500 Bilge Pump?

After reading numerous reviews and comparing different bilge pumps, I chose the Attwood 500 for the following reasons:

  • The pump is made by a reputable brand known for its high-quality marine products.
  • It has a compact design and can fit into tight spaces.
  • The motor has a low amp draw, making it energy-efficient.
  • The pump is easy to install and comes with all necessary hardware.
  • It has a built-in thermal overload protection to prevent overheating.

Things to consider before buying

Before purchasing the Attwood 500 Bilge Pump, there are a few things you should consider:

  • Bilge pump capacity: The capacity of your bilge pump should be based on the size of your boat and the amount of water it can potentially take on. The Attwood 500 is suitable for boats up to 24 feet in length.
  • Type of boat: This pump is designed for small to medium-sized boats. If you have a larger vessel, you may need to invest in a more powerful pump.
  • Power source: The Attwood 500 can be powered by either a 12-volt or 24-volt battery. Make sure your boat’s electrical system can support the chosen voltage before purchasing.

Installation process

One of the best things about the Attwood 500 Bilge Pump is its easy installation process. Here are some steps to follow:

  • Choose an appropriate location inside your boat’s bilge area where water tends to collect.
  • Attach the mounting bracket using stainless steel screws provided with the pump.
  • Connect wires from the battery or switch panel using appropriate connectors (not included).
  • Cut tubing (not included) to desired length and attach it to the discharge port using provided hose clamps.

Maintenance tips

To ensure that your Attwood 500 Bilge Pump continues performing efficiently, here are some maintenance tips:

  • Routinely check and clean any debris or clogs that may affect its performance.
  • If not in use for an extended period, remove from bilge area and store in a dry place.
  • If used in saltwater, flush with fresh water after each use to prevent corrosion.

Final thoughts

In my personal experience, the Attwood 500 Bilge Pump has been an excellent investment for my boat. It has proven its reliability during emergencies and routine maintenance tasks. Plus, its compact design makes it convenient for installation in tight spaces. With proper maintenance, I am confident that this bilge pump will continue to serve me well for years to come.

I hope this buying guide has provided you with all the necessary information about the Attwood 500 Bilge Pump. Happy boating!

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Ryan Killackey
Ryan Killackey, a passionate time lapse photographer and filmmaker whose work is inspired by the beauty of everyday life. Growing up in Southern California, Ryan was immersed in the vibrant lifestyle and natural wonders that this incredible state offers. Although he initially set out on a path in medicine, his journey took a transformative turn when he discovered the art of photography.

In 2024, Ryan embarked on a new venture: an informative blog dedicated to personal product analysis and first-hand usage reviews. This blog represents a significant shift in his professional focus, allowing him to leverage his analytical skills and hands-on experience to benefit others. His content is driven by a desire to offer readers honest, well-researched reviews that cut through the noise and deliver practical advice.

Ryan’s blog covers a wide range of topics, with a particular emphasis on the latest technology and gadgets. Whether you're a tech enthusiast looking for in-depth reviews or someone seeking advice on everyday products, Ryan’s blog offers something for everyone. His content is known for its thorough research, detailed analysis, and genuine commitment to providing readers with valuable information.