12v Sump Pumps

Choosing a 12v sump pump backup is an important task. We trust our basements to these machines and we demand a lot out of them. Take the time to choose a proper pump for the job. If you dont have a backup sump pump, now is the time to get one. There are alot of choices out there.

Gaining the advantage of a truly redundant system is the only way to go. That is, the system obviously has a separate pump but it also has a separate float switch. The secondary pump uses a 12V battery as a power source. The battery should last 4-5 years if properly maintained.

Pumps are rated in horse power and will typically be in the size of 1/4 hp, 1/3 hp or 1/2 hp. More importantly is how much water does the sump move in a given amount of time. This rating is Gallons Per Hour or GPH.

Some 12v sump pumps have a small weep in the pipes after the pump and before the check valve. The secondary pump will also have a weep hole. Its important to remember that if this hole ever becomes clogged, then your backup pump will not function properly. Debris in the water can clog this hole, so cleaning it out with a nail is a good idea once in awhile. That is why it is important to do a functional check of the system quarterly to ensure proper operation.

It is advisable to discharge the water away from your house foundation. Proper drainage away from the house is important for a dry basement. Make sure all of the houses’ downspouts are installed and follow a path of drainage away from the house. Window wells are another area of concern since water can collect in the wells and eventually cause water to enter the basement though the window.

Installing a 12v backup sump pump is a pretty straight forward task and doesn't necessarily require the need of a plumber. If your a handy person, you can install the pump system yourself and save a bundle. Some basic hand tools are required:

• Hacksaw or something to cut PVC pipe
• Tape measure
• Wet dry vacuum
• Screw driver

Planning is critical if you live in an area were the sump pump runs often. Get your tools ready. Measure the discharge pipe to unsure it will fit. Sometime you may have to cut the PVC pipe because the new pump system is taller. Having a wet dry vacuum handy is nice in the event the water level rises before your new pump is operational.

• Unplug and disconnect the discharge pipe from your old pump, remove the old pump.
• Put the new 12v backup sump pump system into the crock.
• Line up the discharge pipe and install the clamp to secure it.
• Neatly run the cords to the wall plug and battery conditioner / charger.
• If your battery has the electrolyte already added, connect the battery.
• Now test the system, let the crock fill or add water until the main sump pump kicks on.
• Test the 12v sump pump backup system by unplugging the main pump at the wall outlet and adding water to the crock.
• Make any necessary adjustments. Watch the system through a few cycles to ensure proper operation.

Tips: If the discharge pipe is too short, try added bricks to the bottom of the crock. Place the 12v backup sump pump on the bricks to raise it. Some systems have an adjustable float to adjust at what water level the pump kicks on. Adding bricks will also change the water level in the crock. If your sump pump cycles a lot, it can wear out prematurely. Adjust the water level to keep the cycles down. Always follow the manufactures recommendations for installation.

If you live in an area that is prone to basement flooding then it is important to follow a few simple guidelines to keep your basement dry. Especially if your basement is finished, since water damage is expensive to repair and usually means replacing of drywall and ruined insulation.

• Keep a properly operating sump pump with a battery powered backup pump
• Keep your downspouts running away from your house, get extensions if need be.
• If your window wells are shallow, dig them out with a post hole digger and add peat rock.
• I would avoid carpet in the basement. Use rugs instead.
• Avoid planting trees close to your foundation, overtime the root system will crack the walls.
• Keep negative grade around your entire house to ensure proper drainage.

Following these simple guidelines will keep your feet dry and avoid expensive repairs. Inspect your house at least once a year to ensure you still have good drainage. Check the sump pump backup system for proper operation. Replace the battery when due.

It is possible to increase your standby power by adding a second battery. The second battery needs to be connected in parallel to the first.

• Always use the same type battery as the first one.
• Only use batteries of about the same age.
• You can get cables from a automotive store for connection.