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Leaking canisters.
Large O-ring on cartridge holder
is missing, damaged or not
installed properly.
Replace or position correctly.
Short cartridge life.
Cartridges being used are
beyond expiration date.
Check the expiration date.
Cartridges begin to lose capacity
after being stored two years from
the date of manufacture. Replace
the cartridges with unexpired
ones.
Change in feedwater
characteristics.
If a Barnstead ROpure is the
feedwater source, check that the
membrane is functioning
properly.
If a Barnstead Still is the
feedwater source, ensure that
the distillate temperature to the
E-pure
®
does not exceed 49°C
(120°F.)
If tap water is the feedwater
source, check the quality of the
water. In some cases the quality
of the water will change with the
seasons. Changing the source
(city water to well water, or well
water to city water) will result in a
water quality change.
If feedwater is from a central water
purification system, verify water
quality and proper functioning of
the system.
