A waterbed mattress has a watertight envelope having a top, a bottom and sides. The envelope defines a cavity for water. First and second valves are disposed in the envelope to selectively allow fluid communication between the cavity and the exterior of the envelope. The second valve is ...
Easy draining waterbed mattress and methodFiber-filled waterbed mattress and method of draining the same. A drainage manifold is positioned beneath a wave dampening fibrous insert to direct water toward a drain valve, and air is admitted into the mattress to replace water which is removed and ...
A waterbed draining system utilizes a vacuum relief valve operatively associated with a waterbed mattress bladder, or alternatively with the drain hose or water pump, to automatically provide air flow into the bladder upon the vacuum pressure within the bladder exceeding a predetermined level. The ...