Turn off the power to your existing electric sump pump.
Saw a 3 to 4 inch section of the existing sump pump's outflow pipe. Attach the two straight ends of the PVC Y-connector to the section of PVC you removed from your existing outflow pipe. Apply PVC glue to both straight ends of the connector and install it by hand.
Apply PVC glue to one end of a 1 foot length of straight PVC pipe and insert it into the Y-end of the Y-connector. Glue the other end of the straight piece of pipe coming from the Y-connector and place a 45 degree PVC elbow on it.
Apply PVC glue to a PVC adapter and attach it to the connector on your Watchdog backup sump pump. Cut a 4 foot piece of straight PVC pipe and attach it to the connector on your Watchdog. Place your Watchdog backup pump at the bottom of your sump pump pit. Do not allow it to touch your main sump pump.
Drill a small hole at an upward 45 degree angle on the pipe about 3 inches above where the PVC pipe attaches to the sump pump.
Using a screwdriver, install the check valve between the end of the 4 foot pipe and the 45 degree elbow. Make sure the arrows on the side of the check valve are facing up when you install it or it will not prevent backflow.
Attach the wire running from your Watchdog to the the side of the pipe with a piece of tape or a metal clamp
Open the battery case by pressing in on the front tabs and lifting it. Set the battery into the battery box several feet away from your sump pump pit.
Push in the tab on the top of the acid pack and pull the dispenser hose out. Clip the end of the dispenser hose off and fill the six cells of the battery with the acid.
Secure the float switch to the PVC outflow pipe with a plastic tie. Plug the pump wires
into the pump connector on the back of the Watchdog's control unit.
Remove the cap on the second battery cap from the positive battery post. It will be clearly marked. Insert the yellow battery cap and then place the end of the fluid sensor into the hole on the top of the cap that is off-center.
Remove the wing nuts on the battery terminal posts and then connect the positive (red) wire to the positive terminal and the negative (black) wire to the negative terminal post of the battery.
Close the cover of the battery box and then plug one end of the AC charger into the back of the control unit and the other end into your wall AC outlet.
Things You Will Need
- PVC saw
- PVC Y-connector
- PVC glue
- PVC connectors
- PVC elbow
- Plastic tie
- Basement Watchdog backup system with battery
- Do not walk on wet areas of your basement until all the power has been turned off. To avoid electric shock, never handle the control unit with wet hands or when standing in or near water. Charge your battery in a well-ventilated area.