10 Best Boat Shower Pumps And Sumps | June 2023 (Reviewed & Ranked)
 Last updated on June 12, 2023
11 minutes
We've created a list of the best boat shower pumps and sumps, with ratings and reviews, to help you choose the right one for your needs. Whether you're looking for something simple or something with more features, we've got you covered.
* The Adventure Pub independently reviews and recommends products through the use of advanced data analysis practices. By clicking the links on this page, we may earn a commission from qualifying purchases.
OUR TOP PICKS
Top #1

Whale Gulper 220 Graywater Pump - Manages Gray Waste in Boats & RV - 3.5 GPM Flow Rate - 12V/24V

Top #2

Amarine Made Boat Marine Shower Sump Pump Drain Kit System Shower Pump System 12v 750 GPH - Multi-po...

Top #3

Five Oceans Shower Sump Pump Drain System Kit, 750 GPH, 12 Volts, Multiple Inlet Ports, Easy Install...

A Few Of Our Ranking Metrics:
1,468
Reviews
Analyzed
159
Products
Considered
117
Q&A's
Inspected
3
Brands
Assessed
Check below for our tips on purchasing the best Boat Shower Pumps and Sumps:
View Buying GuideThe 10 best Boat Shower Pumps and Sumps
Top #1
Whale Gulper 220 Graywater Pump - Manages Gray Waste in Boats & RV - 3.5 GPM Flow Rate - 12V/24V

89%
Customer
Satisfaction
100%
Overall
Score
94%
Product
Quality

WHAT WE LIKE:
The best features of this product are that it is efficient and has a low power draw.
Pros & Cons From Reviewers:
It is reliable.
The pump is powerful.
It does not require a screen.
Top #2
Amarine Made Boat Marine Shower Sump Pump Drain Kit System Shower Pump System 12v 750 GPH - Multi-port Inlet

83%
Customer
Satisfaction
99%
Overall
Score
87%
Product
Quality

WHAT WE LIKE:
This product is a great all-in-one unit that has a box/lid with pump and integrated float switch in it. The removable mesh filter allows easy cleaning. The clear screw-down cover makes it easy to see when the pump needs to be replaced. The check valve on outlet prevents water from backflowing into the pump and causing damage. It also has a slot-in "filter" screen to stop hair, etc., from getting into the pump. The ignition protected means that it will not start if there is an electrical problem. Finally, the tight fitting lid minimizes splashing and odors. This product is easy to install - just cut the hose bard end off with a hacksaw for the size you need, then attach hoses - DO NOT OVER-TIGHTEN HOSE CLAMP, YOU WILL BREAK IT EVENTUALLLY! Then wire in the pump. Multiple inlet ports make this product versatile for use in multiple locations.
Pros & Cons From Reviewers:
The new shower sump works great.
The water did not drain into the unit.
Top #3
Five Oceans Shower Sump Pump Drain System Kit, 750 GPH, 12 Volts, Multiple Inlet Ports, Easy Installation, Ignition Protected, Clear Cover, Check-Valv...

85%
Customer
Satisfaction
96%
Overall
Score
87%
Product
Quality

WHAT WE LIKE:
This product is a pump and float switch that turns on and off automatically. It has a flow capacity of 750GPH /2839LPH and comes with long leads for easy installation. The check valve on the outlet stops water from flowing back into the tank, making it safe for use in marine environments. The product also has multiple inlet ports, including a 3/4" port, 3/4" port, and 1" Inch port, as well as a 1-1/8 Inch and 1-1/2 Inch port. The cover is snap-on and easy to access and clean, while the gasket seal ensures safety standards are met.
Pros & Cons From Reviewers:
The installation was simple.
The unit works great with no leaks or issues.
It is good for keeping up with showers.
Top #4
SEAFLO Shower Sump Pump System Box Multi Inlet 12V DC 750GPH with 4-Year Warranty

80%
Customer
Satisfaction
96%
Overall
Score
90%
Product
Quality

WHAT WE LIKE:
This product is a 12V 750GPH multi-port shower sump with an internal float switch that automatically turns ON & OFF. It has 3/4 multiple inlet ports, 3/4" port, 1-1/8" & 1-1/2" port, and a check valve on the outlet that stops water from flowing back into the tank. The removable mesh filter allows easy cleaning. The clear, easy snap-on cover for easy access and cleaning has a gasket seal. The product comes with a 4 year warranty.
Pros & Cons From Reviewers:
It is easy to install and quiet.
It fits nicely for replacement of Attwood and Rule.
The pump is reliable and has a filter guard.
Top #5
Finderomend 12V 750GPH Boat Marine Shower Sump Pump Drain Kit System Shower Pump System - Multi-port Inlet

85%
Customer
Satisfaction
90%
Overall
Score
90%
Product
Quality

WHAT WE LIKE:
This product is a full-sized automatic boat shower pump with a built in bilge pump and clear screw-down cover check valve. It has an ignition protected switch, removable mesh filter for easy cleaning, and compact design.
Top #6
SAILFLO Boat Marine Shower Sump Pump Drain Kit System - 12v - 750 GPH - Multi-Port Inlet

80%
Customer
Satisfaction
89%
Overall
Score
86%
Product
Quality

WHAT WE LIKE:
This product is an all-in-one pump and switch that does not require a float switch. The pump turns on when the water level rises and shuts off when the water is removed. The motors are cooled with anti airlock design and moisture tight seals for long life. The output is 750 gallons/hour, which is enough to fill a large boat. The strainer can be snapped off for easy cleaning.
Pros & Cons From Reviewers:
It was a perfect fit and easy installation.
It arrived on time and in good condition.
It worked perfectly.
Top #7
SEAFLO 750GPH 12V 3.0A Shower Sump Pump System Drain Kit System Multi Port Inlet

80%
Customer
Satisfaction
88%
Overall
Score
86%
Product
Quality

WHAT WE LIKE:
This product is a high quality, 100% marine grade UV stabilised white ABS plastic construction boat shower pump with a compact full capacity automatic shower sump draining kit. It has a flow capacity of 750 gallons per hour and is approved by CE, ROHS, and ISO9001:2008. The 2 year warranty guarantees customer satisfaction.
Top #8
FloJet 04105143A Marine Freshwater Shower Drain Pump (3.3-GPM, 12-Volt, 6-Amp), White

87%
Customer
Satisfaction
86%
Overall
Score
84%
Product
Quality

WHAT WE LIKE:
This product is a boat shower pump and sumps. It has a package height of 4.5, package length of 12, and package width of 4.5. It is made in China and is classified as a sport type.
Top #9
Attwood 4143-4 Shower Sump Pump System, 750 GPH Model, 12-Volt, 22-Inch Wire, Large Box, -Inch Interior Diameter Outlet Hose

85%
Customer
Satisfaction
85%
Overall
Score
89%
Product
Quality

WHAT WE LIKE:
This product is a boat shower pump and sump. It has a versatile system that can handle multiple inlets hooked up to more than one drain source. The large sump box includes an air vent to prevent air locks. The lid with gasket snaps in to allow quick installation, and for removal for cleaning. This product is rated for 12 volts, uses 22-inch wire connection, and is compatible with most boats.
Pros & Cons From Reviewers:
It is easy to install.
It worked as expected.
It is easy to use.
Top #10
Attwood 4141-4 Shower Sump Pump System, 500 GPH Model, 12-Volt, 22-Inch Wire, Standard Box, -Inch Interior Diameter Outlet Hose

89%
Customer
Satisfaction
83%
Overall
Score
88%
Product
Quality

WHAT WE LIKE:
This product is a boat shower pump and sumps. It is 12 volts and has a max pump amp draw of 10 amps. It also has an industry leading 5 year warranty. This product is directly compatible with all other competitive products.
Pros & Cons From Reviewers:
It is better than the previous one.
Boat Shower Pumps And Sumps Buying Guide : What You Need To Know

*Our top pick for the best Boat Shower Pumps and Sumps
Attributes Of High Quality Boat Shower Pumps and Sumps
- The pump should be made of high quality materials that are resistant to corrosion.
- The pump should be able to move a large volume of water quickly and efficiently.
- The sump should be designed to catch any water that leaks from the shower area and prevent it from damaging the surrounding areas.
How To Choose The Best Boat Shower Pumps And Sumps
It is important to have a boat shower pump and sump on board your vessel in order to ensure that you have a supply of fresh water for showering and other uses. There are many different types and sizes of these devices available on the market, so it is important to choose the one that best suits your needs. Here are some tips on how to select the best boat shower pumps and sumps for your needs:
1. Determine the flow rate that you need. The flow rate is determined by the number of gallons per minute that the pump can deliver. If you have a large vessel with multiple showers, you will need a higher flow rate.
2. Consider the type of power source that you want to use. Some pumps are powered by electricity, while others are powered by batteries. If you plan on using your pump in an area where there is no electrical outlet, then you will need to choose a battery-powered model.
3. Choose a pump that is easy to install and operate. Some models come with instructions, while others do not. If you are not familiar with installing or operating a boat shower pump, it is best to choose a model that comes with clear instructions.
4. Make sure that the pump you select is durable and can withstand the elements. Boat shower pumps and sumps are exposed to salt water and sun exposure, so it is important to choose one that is made from durable materials.
5. Compare prices before making your purchase. Boat shower pumps and sumps vary in price, so it is important to compare prices from different retailers before making your final decision.
What To Avoid When Looking For The Best Boat Shower Pumps And Sumps
Boat Shower Pumps and Sumps are an important part of any boat, but they can also be one of the most difficult parts to choose. There are so many different types and brands on the market, it can be hard to know where to start. Here are a few tips to help you choose the best Boat Shower Pumps and Sumps for your needs:
1. Avoid overspending on features you don't need. Just because a certain model has more bells and whistles than another doesn't mean it's necessarily the better choice. Stick to your budget and only buy what you need.
2. Do your research. Read online reviews, talk to other boaters, and get as much information as you can before making a purchase.
3. Make sure you understand how the pump works. Not all pumps are created equal, so make sure you understand how yours works before using it.
4. Be careful of cheap imitations. There are a lot of fake products on the market, so be sure to buy from a reputable source.
5. Get a warranty. If something goes wrong with your pump, you want to be able to get it replaced or repaired without having to spend a lot of money out of pocket.
Additional Details
As a result of our extensive research into the best Boat Shower Pumps and Sumps, we discovered 159 products and condensed that list down to the top 10 products. Using our state-of-the-art AI powered system, we've collected and anayzed 1,468 customer reviews, compared 84 product features, and cross-examined 244 product specifications. From this data, we've discovered that most customers purchase Boat Shower Pumps and Sumps that costs around $144.17 and have an average customer rating of 87%.
ABOUT US
At the Adventure Pub, we believe finding the perfect product can be a journey. With millions of products competing for our attention, it's easy to get lost in the endless web of possibilities. That's why our team is dedicated to finding the best products and making your researching experience more streamlined by doing the heavy lifting for you. Using state of the art quantitative analysis, machine learning, and natural language processing, we excel at cutting through the noise and finding the products that are actually worth your time considering.
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