- 1). Unzip the mattress cover of your Big Sur waterbed and fold the mattress cover back to expose the waterbed mattress.
- 2). Turn the power off on your waterbed heater, if you have one, and disconnect the heater from its power source.
- 3). Remove the cap and plug from your mattress and pull the fill valve out from the mattress.
- 4). Insert the hose connector (the plastic valve from the waterbed fill kit) into the open valve on the mattress.
- 5). Surround the valve with books to keep it in place and prevent the hose connector from popping out of the valve.
- 6). Attach the short hose that's attached to the suction side of the waterbed pump to the hose connector.
- 7). Connect your garden hose to the other side of the pump, which is known as the outlet side.
- 8). Run the garden hose to where you're draining your water. The easiest places to run the water to is a bathtub or out of a window.
- 9). Turn the waterbed pump on and let it run until the water has drained from your mattress.
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