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Automatic drainage
The panels and the PVC pipe must be installed so that the water drains out of them when the pool
pump shuts off. This is especially important in areas where freezing occurs.
To assist drainage a vacuum breaker is installed on the solar feed line above the 2-way valve, as
shown in the drawing on page 19.
Important:
Heliocol Solar Pool Panels are warranted against internal freezing on condition that they
are installed to allow for automatic draining.
Compensating for lack of automatic drainage
If, due to unusual roof design or pool equipment location, it is not possible to achieve complete
automatic drainage, manual drain down valves must be installed in appropriate places in the
plumbing, or at the end of the bottom (feed) header.
Instead of installing an End Cap at the end of the header, place a CPVC and pipe to a ball valve for
manual drain. These valves should be opened when shutting down the system for the winter
months or when outdoor temperatures approach freezing point.
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