It has already been stated that manual flowreversal is sufficient. In this case, the pool’s
visual appearance is the same as in normal flow. An area of 2-3 feet around the main drain appears
clean and the rest of the pool’s floor has to be vacuumed. In theory, an automated flowreversal
valve will yield the best of both worlds [heating & cleaning]. When the pool is being heated, the
reverse flow mode is used. When the pool is not being heated, the normal flow mode is being
To automate flowreversal using the SolarAttic™ PCS1 Pool Heater, an additional electronic
module is added to the PCS1’s LX220 solar controller to accept the second 24 volt a-c automatic
Manual vs Automatic Flowreversal Valves
While the value of flowreversal cannot be questioned, there is debate over the value of
automating the flowreversal valve. With faster-heating natural gas, propane, fuel oil or electric
pool heaters, it makes some sense to use the automatic flowreversal value. With slower heating
solar heaters and heat pumps, there’s not much benefit to automating the flowreversal valve. We
recommend a manual valve be installed in these instances. In this manner, water is constantly
being recirculated from top to bottom regardless of whether the pool is being heated. In essence,
the support system optimizes the heating of the pool instead of the filtration. No visual or
maintenance difference has been noted in filtration or cleaning of the pool. The heating difference,
The other significant feature in creating an energy-efficient pool environment is the pool
blanket. But there are several misconceptions about pool
blankets that we’ll want to clarify for
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