How to Install the Water Commander

1. Mount Water Commander

Water Commander should be mounted on the wall next to the sump, or up on the joist above the sump. A mounting clamp is provided in the kit.

Water Commander is normally installed in the horizontal position as shown, but can be mounted in a vertical orientation as well. Water Commander will operate well whether mounted low, close to the floor, or higher up on the wall or attached to the ceiling joist.

Water-Powered Backup Sump Pump Installed on Wall
Water-Powered Backup Sump Pump Installed on Joist

2. Municipal Water Supply Needed

Water Commander operates by utilizing your household water pressure as its energy source. Model MG 22 requires a minimum ¾” water supply, which the majority of homes have. If you have a 1” or larger water supply, model MG 36 can be installed in your home.

Tap into your water main and route a pipe to a position next to the input fitting of the Water Commander. Include a standard ball valve on the pipe for shut off. Check your local plumbing code for backflow prevention requirements. Tane Corporation offers various backflow preventers for purchase.

3. Attach Discharge and
Suction Pipes

Each Water Commander model comes equipped with the correct heavy-duty schedule 80 fittings for attaching the PVC discharge and suction pipes, 1 ¼ inch for model MG 22 and 1 ½ inch for model MG 36.

We recommend that Water Commander be installed with an independent discharge pipe (the pipe that leaves the house). While the Water Commander will operate equally well if its discharge pipe is tied into your existing primary pump discharge, a completely separate backup system is always preferable to a backup pump sharing a discharge pipe.

A check valve and intake screen is provided for the suction pipe which runs from the Water Commander to the sump pit. Both the pipes can be turned multiple times if needed to adapt the Water Commander to the space available. Four 90 degree fittings are provided with each Water Commander.

Water-Powered Backup Sump Pump Configuration Option
Water Commander Backup Sump Pump Fittings

4. Attach Float and
Pressure Tube

The Water Commander float assembly simply snaps onto the suction pipe just above the top of your primary sump pump. No nuts, bolts, or screws needed. Once attached, the main pump valve and the float assembly are attached via a flexible tube which is inserted into the tube fittings and each end. Just push the tube into the fitting, no tools are needed.

Water Commander Backup Sump Pump Tubing
Water Commander Backup Sump Pump Float and Tubing

5. Test Water Commander

Once your install is complete, open the valve on your water feed to test the pump. Once the municipal water starts flowing to the Water Commander, it will immediately start pumping water from your sump pit. Once the system is pressurized after a few seconds it will automatically shut off.

To test, lift the float ball for two seconds to initiate pumping. After the float is released, the Water Commander will continue to run for 10 to 15 seconds and then shut off. Your basement is now protected from flooding!

Water-Powered Backup Sump Pump Float
Water-Powered Backup Sump Pump Float Engaged