RCA RSWL1 Installation Manual page 6

2. Install the auto shut-off valves
A. Turn off your washer's shut-off valves
Off
On
Shut-off valves
B. Place a bucket and towel under the hoses
C. Take the hoses off the washer shut-off valves
IMPORTANT: Keep track of which hose went on the hot vs. cold valve.
6
When the shut-off valves are in the on position, they're pointing toward the hose.
Turn each valve 90-degrees counter-clockwise to turn it off.
There is probably water inside them that will leak when you take them off.