Sport & Outdoor

Bilge Pumps

About Bilge Pumps

Not every boat is magically eternal like the “Black Pearl” from “Pirates of the Caribbean.” So, to stop your ship from drowning, you need to keep extracting all the water (that enters the boat one way or another). Being the owner of a boat without Jack Sparrow’s crew, you will need to do it yourself. This is where bilge pumps come forth to help.

A bilge pump is a water drainage gadget that helps to remove bilge water. These pumps are now available in different styles, including automatic bilge pumps or special designs for marine. Previously, these pumps had many common uses. They were often used to suck seawater into a live fish tank to preserve fish until it reaches the dock. Meanwhile, they helped in sucking water and throwing it on blazing fire in case of an emergency. However, today all the bilge pumps on the ships are placed below sea level. Thus, it helps the boats to gain extra suction pressure. To get maximum advantage, these pumps are placed near the bottom of the hull. This is also where they sit and suck water out of the ship. Apart from seas, these force pumps also have some land use like pumping water from the tanks for household or irrigation processing.

A beginner’s guide to understanding boat bilge pump

Almost all boats end up gathering unwanted water in the bilge. To avoid sinking, it important is to remove this water on time to avoid destabilisation of the boat. Meanwhile, it also helps in lifting spilt fuel and distributing it throughout the bilge. However, getting water out of the boat is the automatic or manual bilge pump’s core function. This small device is of great importance when it comes to your safety on the boat. As in some cases, the leak can be catastrophic. However, not all pumps work equally. Therefore, it is important to know these pumps’ core features to utilize them at their best. This is why today, we share some words of wisdom regarding marine bilge pumps so that you are not disappointed in the future.

It is important to know the type of boat

A small boat that sees rough waters needs a better pump system than a larger powerboat needs. The reason is that larger boats generally float on calm waters compared to small boats like a jet or ski boats. It is thus important for you to note how often you are getting into noisy waters and how much your boat’s capacity is. Another important factor is that the bilge pump’s placement is different in each type of boat. For instance, the ski boats and runabouts use a single submersible electric pump in the bilge’s lowest point. While small or medium size racing sailboats or cruising ships generally use a larger pump.

Considering the size of the boat is important

Modern bilge pumps come in different capacities. This capacity is measured in gallons per hour or minute when the boat is in open flow conditions (with no discharge restrictions). Here a rule of thumb is to get the largest model that is practically compatible with the boat. Here the selection of the pump depends on the power limitations and size constraints. The submersible pumps generally have a good open flow capacity that rapidly falls depending on how high the water goes. Another point to keep in mind is that small boats need large-sized pumps because of smaller hull volume. Moreover, small boats have lesser freeboard, which is why they can swamp away easily.

Know the essential system components of the bilge pump

A pump works in coordination with different components besides the pump itself. During the installation, it is connected to the boat battery and a special bilge pump float switch. This switch automatically activates the pump once the water reaches a certain level. Likewise, it automatically turns off when the waterfalls at that specific level in the boat. Another important component is the intake hoes that generally works with a diaphragm pump. It connects the pump with the lowest possible spot in the bilge. One More key component of the process is the discharge hose. It smoothly leads from pump to thru-hull for overboard discharge of extracted water.

Common reasons for the failure of a bilge pump

The most common issue you may experience is the restriction in the flow. As the diaphragm pump continuously drains water and any restriction can stop the flow. In such times, the pump tries to work harder and harder until it stops working. Another common issue in the performance comes with the siphoning effects when the hose is led to a body of water above the starting point. However, occasionally there are issues in the plugged intake as well. This is why the pump must have a filter or strum box at the incoming hose. It prevents debris from entering and clogging the pump or hose. In the end, the dead battery and faulty wiring happen now and then, so keep them changing.

Tips on how to buy Bilge Pump online in the UAE

No matter how expensive and high-quality pump you buy; it will be useless if not compatible with your boat. Moreover, the performance of the pump also depends on how perfect the installation is. Another tip to keep it running is timely maintenance. However, the importance of buying a perfect style (auto/manual) always remains of core importance. Today’s market is flooded with manufacturers selling marine pumps and other accessories for boats. This is the reason why when the installation of the pump is fairly straightforward; the buying process is tricky. However, to keep you in comfort, here are some points to keep in consideration while you head to buy a bilge pump online.

  • Choose the right size – It is better to go for two electric centrifugal pumps with automatic sensors. Additionally, the size of the pump must also be compatible with the boat you will be installing it in.
  • The capacity of the pump – For a mid-size boat, we will recommend a 1000 to 1500 GPH for primary and a 2000 GPH pump for backup. However, according to some official standards, a boat that is shorter than 65 feet must have a pump with 1440-GPH plus one 12-GPH pump.
  • Check the features – Check if the pump is automatic or works manually. Today most people prefer using a pump with sensors. Also, the floating switches should be in a hose. Plus, the pump should have easy access to the strainer.
  • The product description – While buying online, it is important to do some market search. Once you get access to reliable and economical options, explore them in detail. It is better to read the product description section to know all the sizes, components and other specifications.
  • The installation instruction – As said earlier, the installation of these pumps is of great importance. Read a manual of instructions to know the installation process. It is better to look for a pump that you can manage without professional assistance.
  • The maintenance instructions – Just like buying, and installation, the maintenance of these pumps is important. Here you may also need to look if the selected pump has basic features like strainer and length of wire. Also read about the cleaning process carefully.

Here at you can find more than 500 brands offering sports and outdoor products to buy. Some brands names are; Attwood, Jabsco, Shoreline Marine, Seaflo, Amarine Made, and SeaSense. Meanwhile, others on the list are Spxflow, Beckson, Flojet, and Marine Metal. Here you can get access to top quality pumps and other boat supplies with just a few clicks. Moreover, at our retail search engine, you can enjoy a unique experience of searching for a product according to price or brand.

Question & Answer

Are bilge pumps automatic?

Most of the bilge pumps are automatic and comes with built-in sensors. These pumps have a built-in automatic float switch that detects the presence of water in the bilge. Once the water reaches a certain level, it automatically turns on and starts its processing. Likewise, with the decrease of water level in the pump, the float switch turns off. However, there are many manually operated pumps available in the stores. So you might need to explore more than one brand or store to find the type of item you are looking for.

Where can I buy a bilge pump?

Right here at, we have more than 500 brands selling top quality manual and automatic bilge pumps online. These brands are known and trusted for reliable parts and accessories for the marine industry. However, for many, prices is the major constraint or issue to getting a high-quality, hands-on product. This is the reason why we have managed to help our customers to do a customised search. It means that you can look for a product at our retail search engine based on your price limitations.

How to wire an automatic bilge pump?

Installing an automatic bilge pump is a step by step process that starts with mounting the bilge’s pump. In the next step, the user must place the discharge above the waterline and use a thin-wall fitting.  Make sure to take the pump wiring out of the bilge as quickly as possible. Now secure these wires to avoid sagging into the bilge water. You can consult the manual to know the appropriate type and length of wire for your pump. Now you will need to secure the connection between the wires and the pump.

What bilge pump should I buy?

These days, most boat owners and sailors prefer using automated machines, including bilge pumps or anchors. This is the reason why the automatic pumps have recorded more sales as compared to their other counterparts. Some of the top-selling items on the list include; Shoreline Marine Bilge Pump, the Seasense Hand Bilge Pump Hose and the Rule Non-Automatic Bilge Pump. Moreover, there are products from top stores like Attwood and many more.

Here on our product search engine , you can leverage the advantage of searching and buying products from top global brands with just one click. Meanwhile, you can also explore products from stores available on our retail search engine.