ABOUT WATER TEMPERATURES
Water has two unique characteristics: it is a very poor conductor of heat and it has a great capacity to hold energy. In other words, it takes a lot of energy to raise the temperature of water, but once the temperature is raised, the heat energy is dissipated very slowly
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How much do Water Temperatures Change?
When sunlight strikes the surface of water, it heats the top layers most readily. The sunlight is transmitted by the water only enough to heat lower levels a little bit. At 2 meters depth, 98% of the energy has been absorbed and transformed into heat.
Since water has a high capacity to hold on to heat - once heated it stays hot for a long time. |
Pulled this excerpt out discussing thermocline principles.
Here in Thailand with the intense sun this becomes important as some have noted that water temperature is an ongoing effort to cool and sustain it. Clearly the deeper the pool the lower depths stay far cooler due to the energy absorption. When I was down in Sattahip and went to the Phx Golf resort to hit a bucket of balls I saw a nice pool and no one in it. Happened to be a security guard near it so I went to look. I asked how come no one is here then felt the water. It was friggen miserably hot all the way up to my elbow. I wouldn't have jumped in. Not when the water is hotter then the ambient temperature outside..
I like Klondykes and Ratchburis cooling ideas.
Anyway, just posting the info for others. Last thing I want to do is have a pool that is too hot.