Solar Swimming Pool

Shallow water in a pond or lake tend to be more heat than the water that is in a deeper place. This occurs because the sun can warm a basic pond or lake in the area that is more shallow, and that means water that is above become hot.

With the same principle, the sun can be used as a water heater in the building and swimming pool. Most of the water heating system that uses the sun as a source of heat, consists of two main parts: the sun collectors and storage tanks. Collectors that are commonly used flat plate collectors. Collector consists of thin flat box with a transparent top cover part and facing towards the sun. Small pipes that is in the box bring liquids, which can be water or other liquids, to be heated. Pipes is paired on the black plate that serves to absorb heat from the sun. After a heat form in the collector, the liquid is in the pipes will be hot.

Hot fluid is then go to the storage tank that size is usually larger and the thermal isolation is better than storage tank water heater. Systems that use liquid rather than water, usually using the liquid to heat the water through the pipes formed as a coil in the tank.

System used can be active or passive, but the most commonly used system is active. System depend on the active work to pump the liquid from the collector to the storage tank. While passive systems rely on gravity and the nature of water to be circulated if bring to the boil.

System used for the swimming pool is much more simple. Swimming pool filter pump is used to drain water through a sun collector, which is usually made of black plastic or rubber, and then hot water flowed back to the swimming pool.

Solar panels chip installed on the panel using sunlight and converted into hot element coil electricity that will heat water in the copper hose. Water become hot and saved in the “thermos” which is located at the top of it (content about 200 liters).
To save hot water more, then the hot water that does not fit anymore in the thermos will be flowed through thermo valve into the additional isolated tank, usually glass fiber tank wrapped with insulation as glass wool (the contents about 1000 liters). If the sun is dim or the rainy season, the water is warm with electric water heater which is already installed and will work automatically when overcast.

Check out my other guide on solar installation

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