- 1). Cut through the primary drain line, making as smooth and level of cut as possible. The cut will need to be somewhere above the check valve, but not more than 4 feet above the primary pump. Clean both ends of the pipe with the pipe cleaner before applying the cement. Insert the in-line tee check valve, which will prevent any water from being pumped toward the back-up pump when the primary pump is in use. Once the valve is in place, connect the drain line to the valve, making certain it is secure.
- 2). Secure the mounting bracket for the back-up pump. Depending on the model you have purchased, the pump may mount on the pedestal of the sump pump or on the main drain line. Other models will have a bracket that fits over the edge of the sump pit. The back-up pump will be positioned on the bracket inside the sump pit while the marine battery is placed on the other end of the bracket as a counterweight. Regardless of which application you have, mount the back-up sump as low in the pit as possible without interfering with the operation of the primary pump.
- 3). Secure the pump to the bracket, then attach the drain line to the outlet port. Make certain all connections and fittings are secure. With the pump in place, connect the power cables to the pump and marine battery. At the same time, connect the battery charger to the battery and plug it into a GFCI (ground-fault circuit interrupter) outlet. Note: this outlet should be on an individual circuit that does not provide power to any other devices or areas of the home. When all connections are completed, test the pump to be certain all systems are functioning properly.
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