UniWater Submersible Pool Cover Pump 850 GPH Review: Unrivaled Efficiency for a Dry Pool Cover

As pool owners, we’ve all been there: staring out at our beautiful swimming pool, only to see its cover sagging under a heavy, murky lake. Rain, snowmelt, or even just condensation can accumulate rapidly, turning a protective cover into a potential hazard and a real nuisance. The process of manually bailing out water is not only back-breaking but also incredibly time-consuming, often feeling like a losing battle against nature. Neglecting this standing water can lead to stretched or torn covers, increased algae growth in the pool beneath, and even structural damage from excessive weight. We understand the frustration, the wasted hours, and the longing for a simpler, more effective way to maintain our pool covers. That’s precisely why we’ve dedicated ourselves to finding solutions that put the power back in your hands, allowing you to enjoy your pool, rather than constantly battling its maintenance.

What to Consider Before Investing in a Pool Cover Pump

A pump isn’t just an item; it’s a key solution for safeguarding your pool cover, protecting your investment, and simplifying seasonal maintenance. These devices are designed to efficiently remove standing water, preventing the accumulation that can lead to cover damage, breeding grounds for mosquitoes, and the potential for contaminants to seep into your pool. The main benefits include extended cover life, reduced physical effort, faster opening times, and the peace of mind that comes from proactive maintenance.

The ideal customer for a pool cover pump like the UniWater Submersible Pool Cover Pump 850 GPH is someone who owns an above-ground or in-ground pool, frequently faces heavy rainfall or snowfall, and seeks an automated or semi-automated solution for water removal. It’s particularly well-suited for those who value efficiency, durability, and a compact design. Conversely, this type of product might not be suitable for those with very small, decorative ponds where a simple siphon might suffice, or for individuals needing to pump corrosive chemicals. For large-scale industrial water removal, significantly more powerful, specialized pumps would be necessary.

Before investing, consider these crucial points in detail:

• Dimensions & Space: Consider the physical size and footprint of the pump. A compact unit like the UniWater Submersible Pool Cover Pump 850 GPH is ideal for fitting into tight spaces on a pool cover or within a small sump. Ensure it can sit stably on your cover without tipping, especially when dealing with uneven surfaces or debris. Its small profile means it won’t be a cumbersome presence.
• Capacity/Performance: The pump’s flow rate, measured in Gallons Per Hour (GPH), is paramount. An 850 GPH pump is considered quite capable for residential pool covers, effectively moving a substantial volume of water quickly. Also, look at the maximum lifting height, which indicates how high the pump can push water. For most pool covers, a moderate lifting height is perfectly adequate, ensuring the water can be directed away from the pool area.
• Materials & Durability: A pool cover pump operates in harsh, wet environments. Look for models constructed from rust-resistant and impact-resistant materials like durable ABS plastic, which is what the UniWater Submersible Pool Cover Pump 850 GPH features. This ensures longevity and resistance to the elements, preventing premature failure due to corrosion or accidental bumps. Steel components, if present, should be stainless.
• Ease of Use & Maintenance: Consider how easy the pump is to set up, operate, and store. Features like an extra-long power cord, included hoses and adapters, and a protective debris bag significantly enhance user experience. A simple plug-and-play design, coupled with straightforward cleaning, means less hassle and more time enjoying your pool. Long-term care often involves simply rinsing the unit and checking for blockages.

Choosing the right pump involves balancing power, portability, and durability against your specific needs and budget. A well-chosen unit will save you time, effort, and potential repair costs in the long run. If you’re looking for a dependable workhorse that gets the job done without fuss, you’ll want to take a closer look at the UniWater Submersible Pool Cover Pump 850 GPH.

While the UniWater Submersible Pool Cover Pump 850 GPH is an excellent choice, it’s always wise to see how it stacks up against the competition. For a broader look at all the top models, we highly recommend checking out our complete, in-depth guide:

First Impressions of the UniWater Submersible Pool Cover Pump 850 GPH: Compact Powerhouse

Upon receiving the UniWater Submersible Pool Cover Pump 850 GPH, our initial impression was one of pleasant surprise. The packaging was straightforward, securely housing the pump, its hose, and the various adapters. Unboxing was a quick affair, revealing a remarkably compact and lightweight unit – at just 16 ounces and measuring 4.7″L x 6″W x 5″H, it felt surprisingly substantial in hand despite its low weight, a testament to its durable ABS housing. The vibrant green color is a distinctive touch, making it easy to spot against a pool cover or in a utility closet. We particularly appreciated the inclusion of the 16-foot drainage hose and the three adapters, indicating that it’s ready to use straight out of the box with minimal fuss.

Assembly was incredibly simple: attach the hose, plug it in, and you’re good to go. This “plug-and-play” aspect is a significant advantage, especially for those who want to get straight to work without complicated instructions. We noted the impressive 25-foot power cord, a feature that immediately stood out. This extended reach provides immense flexibility, eliminating the need for extension cords in many scenarios and significantly improving safety. Compared to other models we’ve tested, which often come with shorter, more restrictive cords, the UniWater Submersible Pool Cover Pump 850 GPH immediately scores points for user convenience and thoughtful design. The feel of the plastic housing, while robust, doesn’t convey the same heavy-duty industrial feel of some more expensive, metal-bodied pumps, but it certainly feels adequate for its intended purpose. Many users echoed our sentiment, praising its ease of setup and immediate functionality.

A Deep Dive into the UniWater Submersible Pool Cover Pump 850 GPH’s Performance

When it comes to maintaining a clean and safe pool, effectively managing water on your cover is non-negotiable. The UniWater Submersible Pool Cover Pump 850 GPH promises powerful, efficient water removal, and our extensive testing confirms it largely delivers on this front. We put this pump through its paces in various scenarios, from light rainfall accumulation to heavier, debris-laden water, and gained a comprehensive understanding of its capabilities and any areas where it could improve. This deep dive will explore its core performance aspects, giving you a detailed look at what to expect from this compact but mighty device.

Unrivaled Drainage Speed and Efficiency

The headline feature of the UniWater Submersible Pool Cover Pump 850 GPH is undoubtedly its impressive 850 Gallons Per Hour (GPH) flow rate. In our tests, this translates to incredibly rapid water removal. We positioned the pump on a medium-sized pool cover after a significant rain event, and watched as it quickly began to clear the standing water. The suction power is palpable, creating a noticeable vortex as it draws water towards its intake. For an above-ground pool cover, where water accumulation can often reach several inches, this speed is a game-changer. We observed a significant reduction in water levels within minutes, with smaller puddles disappearing entirely in under an hour. This efficiency means less waiting time, less potential strain on your pool cover, and a quicker path to opening your pool when the season arrives.

One user perfectly encapsulated our findings, exclaiming, “AMAZING little pump! I can’t believe how well this pump worked when draining our 15ft 48inch pool! Super easy to install the hose using the included connectors. In a matter of minutes, it was up and running. Its quite powerful for the size and the flow rate is great.” This mirrors our experience – for its size, the pump is exceptionally powerful. While the flow might not be a “quick draw” like some industrial pumps, as one user noted when using it for a fountain, it’s “perfect for what we needed,” delivering a steady, effective stream that gets the job done without overwhelming smaller drainage systems. This speed is a critical factor in preventing water from becoming stagnant, thereby reducing the chances of mosquito breeding and algae growth on your cover. The ability to drain a typical above-ground pool cover in a fraction of the time compared to manual methods truly sets the UniWater Submersible Pool Cover Pump 850 GPH apart.

Robust Durability and Thoughtful Protection Features

Durability is paramount for any tool destined to live in a wet, outdoor environment, and the UniWater Submersible Pool Cover Pump 850 GPH incorporates several features designed to enhance its lifespan. Its construction utilizes durable, rust-resistant, and impact-resistant ABS housing. We found this plastic shell to be quite robust, standing up to accidental knocks and the general rigors of outdoor use. While it may not have the heft of a metal pump, its lightweight nature is a benefit for portability without sacrificing essential protection. This resilience is crucial given that these pumps are often left exposed to the elements for extended periods.

Beyond its exterior, the internal mechanics are protected by a double protection system. This includes a bottom filter hole design, which acts as a primary barrier against larger debris, and a high-quality mesh bag that effectively prevents smaller leaves, silt, and harmful waste from entering the machine. We specifically tested this by placing the pump in water with a moderate amount of leaves and small twigs. The mesh bag, when properly used, did an excellent job of keeping the impeller free from obstructions, allowing for continuous, uninterrupted operation. One user appreciated this, stating, “I liked that this came with a debris bag to keep it from getting clogged.” This proactive approach to debris management is vital for maintaining consistent performance and preventing costly damage to the pump’s motor. Furthermore, the built-in temperature control core is a crucial safety and longevity feature. It actively prevents “dry burning” – a common cause of pump failure when the unit runs without water. This automatic shut-off mechanism is a testament to the thoughtful engineering behind the UniWater Submersible Pool Cover Pump 850 GPH, ensuring it will last for many seasons. While one user expressed hope it would last as long as their previous pump (12 years!), the design elements suggest it’s built for the long haul.

Designed for Convenience: Setup, Operation, and Portability

From the moment you unbox the UniWater Submersible Pool Cover Pump 850 GPH, its design philosophy of convenience becomes evident. Its small, lightweight profile (just 16 ounces!) makes it incredibly easy to handle, position on a pool cover, or move from one location to another. We found its portability to be a significant advantage, particularly for those with larger covers or multiple areas needing drainage. The setup process is genuinely straightforward; simply attach the included 16-foot drainage hose using one of the three adapters, connect the power, and submerge the unit. One user praised its simplicity, saying, “The setup was quick and easy, and it efficiently pumps water off once positioned correctly.” Another added, “This sump pump is so easy to use. It comes with step by step instructions they got you through the whole process.” This confirms our assessment that minimal technical expertise is required to get this pump operational.

The extra-long 25-foot power cord is another stand-out convenience feature. This generous length eliminates the need for potentially unsafe extension cords in many scenarios, providing ample reach to a power outlet. It significantly enhances flexibility in placement, allowing us to position the pump precisely where it was most effective on the pool cover without worrying about cord accessibility. Furthermore, its ability to operate down to a minimum water level of 0.6 inches is impressive, ensuring that very little standing water is left behind. This “nearly dry” performance is crucial for preventing residual puddles from harboring pests or causing stubborn stains. While some users noted a thin hose that can kink, we found that careful positioning and ensuring a clear path for the hose mitigated this issue. Overall, the UniWater Submersible Pool Cover Pump 850 GPH is engineered for ease, ensuring that the chore of water removal is as painless as possible. For anyone seeking a hassle-free solution, we strongly recommend considering the UniWater Submersible Pool Cover Pump 850 GPH, as it simplifies pool cover maintenance significantly.

What Other Users Are Saying

Our expert assessment of the UniWater Submersible Pool Cover Pump 850 GPH is largely corroborated by the experiences of other users, who frequently highlight its powerful performance and ease of use. Many users echoed our positive findings regarding its drainage capabilities, with one reviewer exclaiming, “Very powerful! Amazing.” Another user, who used it for a 4400-gallon pool, reported “Excellent progress!” in draining, confirming its efficiency even for larger volumes. The straightforward setup and operation were also recurring themes, with comments like “The setup was quick and easy” and “This sump pump is so easy to use.” The inclusion of accessories like the drainage hose and a protective mesh bag were frequently appreciated for adding to the overall value and functionality.

However, user feedback also brought to light a few minor inconsistencies that align with some of our observations. Some users reported issues with missing components upon delivery, such as threaded hose connectors or rubber suction cups, as one user noted, “The threaded hose connectors are missing from the box.” Another mentioned the leaf bag arrived with a “seam split open.” While these seem to be isolated incidents, it’s worth noting that prompt customer service resolved the issues in at least one instance, which is reassuring. A few users also commented on the hose being “a bit thin and can kink easily,” which we also found to be a potential issue if not managed carefully. While generally praised for its power, one user felt it “isn’t as fast as the pump I had before,” though still expressed overall satisfaction. These insights from a broad user base reinforce our balanced perspective: the UniWater Submersible Pool Cover Pump 850 GPH is a highly effective and user-friendly pump, though prospective buyers should be aware of potential minor quality control variations in accessories.

Comparing the UniWater Submersible Pool Cover Pump 850 GPH to Its Top Alternatives

While the UniWater Submersible Pool Cover Pump 850 GPH excels in many areas, it’s always prudent to understand how it stacks up against other popular options on the market. Different pumps cater to different needs, and a direct comparison can help you determine the best fit for your specific situation. We’ve examined three key alternatives to provide a comprehensive perspective.

1. Little Giant LG-APCP1700 1/3 HP Automatic Pool Cover Pump

The Little Giant LG-APCP1700 is a significantly more robust and powerful alternative, boasting a 1/3 HP motor and an impressive 1745 GPH flow rate – more than double that of the UniWater Submersible Pool Cover Pump 850 GPH. Its key differentiator is its automatic operation, meaning it turns on and off by itself based on water levels, offering true set-it-and-forget-it convenience. This makes it ideal for users who experience frequent, heavy rainfall and prefer a hands-off approach to cover maintenance. While the Little Giant is a formidable performer, its higher power comes with a larger footprint and a substantially higher price point. It also has a more industrial aesthetic. For those needing maximum power and automation without budget constraints, this is a strong contender, but for value and portability, the UniWater Submersible Pool Cover Pump 850 GPH remains a compelling choice.

2. Swimline HydroTools Submersible Pool Cover Water Siphon Pump

The Swimline HydroTools Submersible Pool Cover Water Siphon Pump represents an entirely different approach to water removal – it’s a non-electric siphon pump. This unit is remarkably simple, relying on gravity and a manual priming action to create a siphoning effect. Its main advantages are its ultra-low cost, complete silence, and zero electricity consumption, making it an excellent eco-friendly option or a backup solution during power outages. However, its flow rate is considerably slower than any electric pump, and it requires manual initiation and a drop in elevation to function effectively. It’s best suited for very small puddles or for users with limited budgets who don’t mind a more involved, slower process. For rapid, consistent water removal, especially from larger covers or significant accumulations, the electric power and efficiency of the UniWater Submersible Pool Cover Pump 850 GPH are overwhelmingly superior.

3. RO6G SPX1600TRA O-Ring Seal Repair Kit

This “alternative” isn’t a pump itself but rather a repair kit for Hayward Super Pumps. Its inclusion in this list highlights a crucial aspect of product longevity and maintenance. While the UniWater Submersible Pool Cover Pump 850 GPH is a standalone unit designed for out-of-the-box operation, the RO6G SPX1600TRA kit serves as a reminder that some pumps, particularly larger, more complex filtration or circulation pumps, often require specific parts and regular maintenance to sustain their performance. This kit is specifically for repairing existing pool equipment rather than a primary solution for cover water removal. Therefore, it’s not a direct competitor to the UniWater Submersible Pool Cover Pump 850 GPH, but rather a product in an adjacent category emphasizing the importance of maintenance for a different type of pool pump. Its presence here underscores the UniWater’s advantage as a ready-to-use, relatively low-maintenance, dedicated cover pump without the need for intricate seal repairs.

Final Verdict: The Smart Choice for Efficient Pool Cover Drainage

After extensive testing and careful consideration of user feedback, our verdict on the UniWater Submersible Pool Cover Pump 850 GPH is overwhelmingly positive. This pump delivers on its promise of rapid and efficient water removal, making the dreaded task of clearing a waterlogged pool cover significantly easier. Its 850 GPH flow rate, coupled with its compact and lightweight design, positions it as an excellent solution for both above-ground and most in-ground pool covers. We were particularly impressed by the thoughtful inclusion of an extra-long 25-foot power cord and the robust double protection system, which safeguards the pump from debris and dry burning, hinting at a long and reliable service life.

While we noted some minor inconsistencies in accessory packaging and the occasional tendency for the included hose to kink, these are minor drawbacks overshadowed by the pump’s core performance. For its price point, the UniWater Submersible Pool Cover Pump 850 GPH offers exceptional value, blending power with user-friendly features. We highly recommend this pump to any pool owner seeking a reliable, efficient, and easy-to-use solution for maintaining a dry and healthy pool cover. If you’re ready to say goodbye to manual bailing and embrace a smarter way to manage your pool, then the UniWater Submersible Pool Cover Pump 850 GPH is a wise investment that will pay dividends in time saved and peace of mind. Experience the difference for yourself and make pool cover maintenance a breeze.