Better Water LLC; rev. Apr 2017
Page 9 of 20
Cartridge Based Pyrogen Filtration System
(2-4 Filters)
Operator Manual
4.
Slowly open and close the bypass valve a few times during the disinfect rinse process to allow
the bypass ball valve and associated piping to be rinsed.
5.
Slowly open and close the sanitary sample ports a few times during the disinfect rinse process
to allow these ports to be rinsed.
SANITIZING THE SANITARY SAMPLE PORTS
Sanitize the sanitary sample ports immediately BEFORE each sampling operation.
1.
Turn the port stem to the left to open and allow a full flow of liquid to pass out of
the port for 1-2 minutes. Then close the port by turning the stem to the right.
2.
Fill a 20 ml plastic polypropylene syringe with at least 10 ml of 70% ethanol, 90% isopropyl
alcohol, or 3% hydrogen peroxide solution. Attach the port-needle to the syringe.
3.
Insert the needle all the way into the port through the stem opening, and express most of the
sanitizer into the port. Allow a few milliliters to flow out of the port outlet.
4.
As the needle is removed from the opening, squirt the remaining few milliliters of sanitizer over
the outer surface of the stem.
5.
When ready to sample, open the port for 1 to 2 minutes to allow product water to rinse the
residuals and any endotoxins from the sample port before sampling.
