A simple winterizing/maintenance process which enables the pool owner to take samples of a swimming pool water, analyze it, and add the appropriate chemicals to the pool during the wintertime off-season months when it is covered and out of normal service. A device has been designed to distribute chemicals throughout a pool and provide the necessary mixing action to assure homogeneity of the water and chemicals. This entire process is performed with the pool cover in place and the main pool pump and filtration system out of operation. The need to winterize the pool or lift the cover at any time during the off-season is eliminated.
An electronic system for use in a body of fluid is disclosed. The electronic system includes a first housing element and a second housing element. The second housing element is hermetically sealed to the first housing element, forming a first chamber there between. An electronic circuit is mounted within the first chamber. The electronic system further includes a second chamber internal to the second housing element. The second chamber is configured for holding a power source for the electronic circuit. Preferably, the power source is a battery pack. Also, the electronic system includes means for temporarily sealing the second chamber. Preferably, means for temporarily sealing the second chamber includes a detachable plug configured for coupling to the second housing element.
