Sungrabber Solar Pool Heater Installation & Owner's Manual page 8

Installation (continued)
Rigid PVC Pipe
a. The supplied valves and fittings are 1-1/2" pipe size. If your pool uses a different
pipe size, consider using appropriate reducers or replacing the valves and fittings
with ones that are the same size as your pool plumbing.
b.Turn on your pool pump and record the pressure shown on the pressure gauge on the
pool filter. Turn off your pool pump. If the pump is lower than the top of the pool, block
the inlet and outlet of the pool.
c. Cut out approximately 2 foot section of pipe directly after the pool filter using PVC
pipe cutters or equivalent.
d. Using appropriate PVC primer and cement, glue the following valves and fittings
directly after the pool filter in the following order: 1. Check valve (with arrow pointing
away from the pool filter); 2. Tee for solar inlet (with one end leading to the solar col-
lectors); 3. Ball valve; 4. Tee for solar outlet (with one end leading to the solar col-
lectors). The check valve prevents debris in the pool filter from backflushing into the
pool when the pool pump turns off and water drains from the solar collectors into the
pool. The ball valve acts as a bypass valve to optimize the flow and back pressure
on the system.
e. Install pipe and elbows to connect solar inlet tee to bottom solar collector end, and to
connect solar outlet tee to top solar collector end.
f. Turn the ball valve handle so that it is perpendicular to the ball valve or fully closed
(solar on position). Solar is not used when the ball valve handle is completely in-
line with the ball valve (solar off position). Unblock pool inlet and outlet and turn on
pump. The air that was in the solar collectors will bubble out into your pool for a few
minutes--this is normal. Repair any leaks that appear. After running the pump for
about 5 minutes, slowly turn the ball valve handle until the pressure gauge reads
below 30 psi or 10 psi less than the pressure reading you took before installing the
solar system.
g. Save the provided repair plugs. Discard any other unused parts.
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