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11. Troubleshooting
PROBLEM
THERE ARE AIR
BUBBLES IN THE
POOL WHEN THE
SOLAR HEATER IS
OPERATING
13
CAUSE
1. If the pump is making
more noise, there may be air
coming into the pump through
an air leak on the suction
side of the pump due to the
pump working harder to move
the water through the solar
system.
2. If the vacuum breaker is
installed on the roof, there is
not enough water pressure in
the solar system to keep the
vacuum relief valve closed
and it is allowing air to be
drawn into the water as it
flows by the valve.
SOLUTION
A. Be sure pump trap lid is
on tight.
B. Check the "O" ring on
the pump trap lid - clean,
lubricate, or replace as
needed.
C. If you have a suction type
pool cleaner, remove it. If this
improves the air bubbles, only
use it when not operating the
solar.
D. If you have a clear lid on
the pump and can see air
bubbles in the trap, run water
over the lid and each joint
individually to see if the air
bubbles will clear up using a
garden hose. If there is not a
clear lid, listen to pump noise
for a smoother operation,
repair any air leaks.
A. Be sure filter is clean.
Backwash to reduce
pressure.
B. If it's an older system,
check for debris or scale in
the mouth of the vacuum relief
valve and clean if necessary.
C. Use the (2-2015-019) on
the return line to throttle the
flow back to produce more
back pressure on the system.
UniverSol Replacement Kit
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