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Revision Date: 02/07/2020
Revision: C
Pre-Assembled Rhino - Installation Manual
Appendix 17: Troubleshooting
Air Bubbles are appearing in the pool returns when the system is running
Cause
:
Air bubbles are a result of air entering the system. This could be caused by air entering through the pump or
through the vacuum relief valve, you can find out what the cause is by:
•
Listening to the pump
if the pump is making a lot of noise, then it is likely that air is being sucked into the system through an
air leak on the supply (suction) side of the pump. This makes the pump inefficient and therefore it will
make more noise as a result.
•
Listening to the VacRel (Vacuum Relief Valve)
with the pump and system operating and stable, inspect the VacRel by listening for any potential
sound of air being sucked into the VacRel. The VacRel should be quiet
and if it isn’t it
would most
likely be due to negative pressure within the array therefore allowing air to be drawn through the
VacRel and into the circulating pool water within the solar array. The negative pressure within the
array will generally be caused by the pool water falling faster from the roof and back to the pool
compared to the water being pumped up to the roof.
Solution:
When air is entering through….
The pump
The vacuum relief valve
•
Check that the pumps filter basket lid is on
tight. If the lid is on tight, but you still
suspect air is entering through this point,
remove, clean, lubricate or replace the O-
ring on filter basket as needed
•
If the pump has a clear lid, look inside and
see if air bubbles appear. If they are
present, use a garden hose to run water
over the pumps lid and joints and look to
see if the bubbles stop. If they stop, locate
and fix the leak.
If the pump does not have a clear lid, listen
to the pump noise for a smoother
operating sound, locate and repair any
leaks
•
If the pool is using a suction type pool
cleaner, try removing it to see if the air
bubbles clear up. If they do, only use the
cleaner while the system is turned “OFF”
•
With the pump off and being careful not to
lose any of the components, remove and
clean the VacRel as needed
•
If the solar system is plumbed off the
filtration system, clean the pool filter and
backwash to reduce pressure
•
Check the filter cartridge in the TufFilta.
•
Fit a ball valve to the return pipe and
slightly adjust the valve to apply a low
positive water pressure within the system,
remove the handle if possible, to avoid
tampering.
