I Tested And Reviewed 7 Best Battery Backup For Existing Sump Pump (2023)

I recently purchased the backup power supply from Miumoon and overall, I am quite satisfied with its performance. The build quality is solid and installation was relatively easy, although I did find the instructions for the cable connection to be a bit lacking. However, once everything was set up, the backup power supply worked flawlessly.

One of the standout features of this backup power supply is its inverter. It is well-made and switches seamlessly from AC power to DC power. The output charging voltage is a constant 14.1 VDC, which is more than enough to keep my deep cycle battery fully charged. I have been using it with a 100AH battery and it provides over 24 hours of backup operation for my sump pump. Additionally, the device also offers battery recharge service once utility power is restored.

In terms of compatibility, I tested the backup power supply with my 3/4HP Liberty pump, which is rated at 29amp starting amps and 12 amp run. It switches perfectly when there is a power outage and instantly powers up the pump. I would definitely recommend this backup power supply for similar applications, although I do hope it lasts in the long run.

While I am generally satisfied with the performance of this backup power supply, I did encounter a few issues that I feel the manufacturer should address. Firstly, the lack of a standard IEC female plug for connecting to the AC power supply is a bit inconvenient. Secondly, the installation instructions should clearly indicate which wire should go to Line, Neutral, and ground for safety purposes. Additionally, the plastic cover that goes over the terminal block should be more securely fastened to ensure better protection.

Another concern I have is the placement of the fuse inside the unit. It is not clearly specified where the fuse is located and accessing it requires opening the unit and disconnecting all wires. This can be potentially dangerous, especially if there are large capacitors inside that can store a charge even when unplugged. It would be helpful if the manufacturer provides clearer instructions on how to inspect and change the fuse.

Lastly, while the Amazon seller has been responsive to my questions and concerns, it would be beneficial to have a dedicated website or tech support phone number for more immediate assistance.

The Sewage Ejector Tank Alarm is an essential device for anyone who relies on a pump switch to prevent dangerous sewage overflow. This alarm serves as an early warning indicator, ensuring that you are alerted before any flooding occurs.

The installation and setup of this alarm are straightforward, allowing for easy integration into your existing system. The siren is loud enough to be heard throughout the entire house, providing peace of mind that you will be alerted in the event of a pump switch failure.

It is worth noting that the rechargeable backup batteries included with this alarm are a valuable feature. While AC power is required for the ejector pump, having a battery backup ensures that the alarm will continue to function even during a power outage. The longevity of the batteries will depend on their type, but if they are lithium batteries, they should last for at least five years.

For those using this alarm as an overflow alarm for a reverse osmosis system, it is worth mentioning that the sensor is easily threaded through a drilled hole in the top of the tank. This allows for accurate monitoring and testing of the alarm.

The sound level of the alarm is highly effective, and it can be manually turned off when necessary. This is particularly useful in situations where the pump is functioning correctly and the alarm is not needed.

I recently installed this sump pump system in my basement, and I have to say, the installation process was a breeze. I opted to include a water alarm, which has proven to be a wise decision. In the past three months, I have experienced power outages twice, and thanks to the backup pump, my basement was saved from any water damage. Prior to installing this system, I had come home to a flooded basement on one occasion, so the peace of mind this backup pump provides is well worth it.

One thing I would like to mention is that I replaced a 15-year-old sump pump with this system, and I encountered a minor issue. The instructions suggest drilling a weep hole below the main backflow check valve, but I would advise against doing so. The pressure created by this pump caused water to spray out of the weep hole, creating a mess inside the pit and even outside if the cover is not tightly sealed. I managed to solve this problem by plugging the hole with a screw. I haven't experienced any issues with the back drain causing the pump to kick back on, as there is a back-flow valve right above the pump. I actually wrote detailed installation instructions, which can be found by searching for "sump pump" on shareyourrepair.com. Additionally, it's worth mentioning that the newer version of this system comes with an LCD display and keeps track of the cycles run.

I have had this sump pump system in place for three years now, and I periodically test it. The charger does an excellent job of keeping the battery fully charged. This is particularly important for me, as the home where it is installed is not occupied most of the time. Therefore, it is crucial that the system is ready to kick in when a power outage occurs. I would recommend investing in a powerful and long-lasting battery, as the pump will not function if the battery fails, just like a car without gas.

I decided to purchase this sump pump system after experiencing heavy rainfall. Initially, I was a bit nervous about the installation process, but after watching a couple of instructional videos on YouTube, I felt more confident. Along with this system, I also replaced the check valve with a quieter one. To complete the installation, I purchased a hacksaw, PVC primer, and PVC cement from a hardware store, as well as a deep cycle marine battery from an auto parts store. So far, everything has been running smoothly, and I hope it continues to do so without the need for the pump to kick on.

I recently purchased this pump setup for a reasonable price of $170, which is quite competitive compared to other options in the market. I opted for the tethered float instead of the standing float, as it was more affordable. Surprisingly, the tethered float not only worked well but also provided me with extra space in the pit, which was a bonus considering my small crock.

The pump itself is made of sturdy thermoplastic and feels durable. The battery case is plastic and includes the controls, making it convenient to use. Additionally, the kit includes battery standoffs and a plastic check valve that screws onto the pump, which were nice surprises. Despite the fact that the instructions recommended mounting the pump to the discharge line, I had to install it at the bottom of my crock due to the check valve inside the crock. However, this did not affect the pump's performance.

To prevent the pump from picking up debris from the bottom of the crock, I created a small platform for it to sit on since it sits quite flush to the ground. The only downside I encountered was that the check valve included in the kit was weak and cracked while I was installing it. However, since I hadn't expected it to be included, I won't deduct a star for this issue. Instead, I used a Zoeller valve for this pump and a quiet spring-loaded valve for my AC pump.

I recently installed and tested this backup sump pump, and so far, everything is functioning well. The performance is on par with my primary AC-powered sump pump, which is impressive. The installation process took longer than anticipated due to replacing the piping from the old setup. However, the instructions provided clear guidance on achieving the desired end result.

During the testing phase, I encountered a minor issue where the primary pump was running, but no water was coming out. This was due to water standing in the pipe, preventing the check valve from opening. To resolve this, I drilled a small hole (3/32") just above the flapper, allowing the water to drain from the pipe and relieve the pressure. It's important to note that this should only be done if the check valve is in the pit; otherwise, it may result in a significant puddle if the check valve is located above the pit.

Considering the additional fittings and pipe required for my installation, the overall cost amounted to approximately $30.

The Red Lion dual pump system is a reliable and efficient choice for those who already have a backup generator and do not require a battery backup system. With easy assembly and installation, this pump system is convenient to set up. Plumbers tape and plumbers cement are needed for installation, but once that is done, it can be easily dropped into place. Even with an 18" sump pit, there is still room to spare with this system.

The product comes ready out of the box and only requires minimal glueing to get it up and running. One pump can be powered by standard AC, while the other can be connected to a 100 Amp inverter with two 6-volt 300 AmpHour batteries as the power supply. Each pump has its own float switch, making it easy to adjust and set up a backup system. These pumps are not like toy 12v backup pumps; they are serious pumping machines with 1/3 HP power.

Installing the dual Red Lion pumps in the 18" crock is a breeze. It is a simple replacement for an old single unit, and the installation process is straightforward. The pumps are designed to operate quietly, which is a plus. When used in conjunction with a whole home generator, they form a great combination. The 10' cord length allows for separate circuit connections for each unit, adding to the convenience.

In some cases, adjustments may need to be made to accommodate the position of the vertical pipe in the sump. However, this can be easily resolved by relocating one of the floats by rotating it 180 degrees. This ensures that the float is clear of the sump wall. Compared to a previous cast iron 1/2 HP pump, these Red Lion pumps operate silently. Monitoring their functionality requires attention as they are so quiet that it is hard to tell if they are running without checking a sump monitor.

The float switch style used in these pumps may not be everyone's preference. While they are durable, some users have found that they tend to fail more quickly compared to floating balls. However, if they last for a year until the annual replacement, they are considered good enough. The heavy construction of the pumps indicates their high quality and ensures their reliability.

The Zoeller 508 Aquanot backup sump pump is a great choice for homeowners looking for a reliable and efficient backup system. Installation was fairly straightforward, taking about 3 hours for someone with basic handy skills. However, it's important to note that if you have an older system, you may need a strap wrench or pipe wrench to remove the original piping.

One of the standout features of this pump is how quiet it runs, even quieter than the primary pump. It also has an alert system that notifies you when it activates during a power outage, giving you peace of mind.

While it's difficult to review the long-term durability of a backup system, this Zoeller pump is built to last and should serve you well for as long as you own your home. In comparison to other brands, this one stands out as a reliable choice.

The control box of this pump is well-designed, with an aluminum case and an LCD screen. The quality of the build is impressive and gives the pump a sturdy and durable feel. It also fits well in the standard 18" well, without overcrowding.

One downside of the Zoeller 508 Aquanot is the instructions provided, as they are not very clear. However, the company offers a helpful phone line for clarification, and their personnel are knowledgeable and eager to assist. They can provide guidance on specific installation details, such as the pre-drilled relief hole in the line and the exclusion of an in-line one-way valve, which saves you money.

For optimal performance, it is recommended to invest in a good quality marine or golf cart deep cycle battery. Trojan batteries are highly recommended for their reliability and longevity.

I recently experienced a power outage that lasted for several hours, and it caused significant worry and damage to my basement. However, after purchasing the Pump Sentry backup system, my worries have been put to rest. This exceptional product has proven to be a lifesaver in preventing flooding and saving me thousands of dollars in potential damages.

The installation of the Pump Sentry was a breeze, and I was able to set it up quickly and easily. I also purchased a marine battery as recommended, which ensured that my pump would continue to work flawlessly during a recent storm that resulted in a 9-hour power outage. The battery lasted for about 6 1/2 hours, providing sufficient time to prevent any flooding in my basement.

What impressed me even more was the customer service provided by SEC America. When I had questions about the product and the backup battery, they were prompt in responding and provided me with valuable recommendations specific to my situation. This level of support gave me confidence in my purchase and reassurance that I made the right choice.

The Pump Sentry is a heavy-duty unit, built to last, and it immediately switches to battery power within seconds of a power outage. Once the power is restored, it seamlessly switches back to the main power source. While the unit may be a bit pricey, the fact that it is made in the USA and backed by a helpful manufacturer makes it worth the investment.

I appreciate the peace of mind that comes with knowing that my sump pump will continue to run during any power outage. With my high water table and frequent pump usage, this backup system has become an essential part of my home. I no longer have to worry about flooding, even if the power goes out for an extended period.