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12) Air Bubbles: Lots of Air bubbles in cup or bottle when filling
It is quite normal to see air bubbles in a cup of pure water. This mainly occurs when a RO unit is
first installed or when filters are being replaced. When new filters are installed to the unit, the filter
housings are dry. When they are attached onto the RO head, air pockets will fill the housing. As
water is turned on and flows through the unit, the air pockets move throughout the system. This
can have an effect on the appearance of air bubbles in the water.
RO units will self purge the air bubbles that can accumulate inside the unit. As you continue to
draw water, trapped air will be removed by the water flow and you should quickly see a reduction
in the bubbles inside the water cup. You can also drain 1-2 tanks of water to quickly purge the air
bubbles.
* * * End Trouble-Shoot Guide * * *
10) There is a leak at the Tank ball valve connection
If you are experiencing a leak from where the tank ball valve attaches to the tank stem, you may
not have applied enough Teflon tape to the stem when you first installed the valve. To correct this
issue, flush out any water that may of filled the tank, then remove the tank ball valve. Apply 6-8
wraps of Teflon Tape to the tank stem and re-attach the tank ball valve. Please double check the
connection for leaks.
11) Pure water still tastes like Tap water:
The first thing to check would be if the reverse osmosis membrane was installed. The membrane
is the heart of the RO unit and it is the component that removes most of the contaminants and
impurities in the water. If the membrane is installed, please make sure the first 1-2 tanks of water
have been completely flushed out. The new filters on your system needs to be flushed out before
use.
If the tank has been flushed out, use the TDS meter to check the tap water vs. pure water TDS.
RO units will remove 90-95% of contaminants and impurities in the water. If the pure water is not
at 90% or higher, please contact an APEC technician for assistance.
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