13.2 Tank Solution Disposal; Appendix A: Granu Flo ® Dry A - Fresenius Medical Care GranuFlo Dissolution Unit II Operator's Manual

S 13: D C
ECTION ISPOSAL OF
13.1 Residual Solution Bucket Disposal
There are three occasions that require the need to discard residual solution. Those occasions are described as
follows:

Filter Housing Residual: Whenever you have to change out a Filter, then the solution in the Filter
Housing shall be poured into the Residual Solution Bucket.

Hydrometer Cylinder Residual: Once you are complete with the Specific Gravity Test, the solution in
the Hydrometer Cylinder shall be poured into the Residual Solution Bucket.

Initial 3.5 Gallon Transferred Solution: This is the 3.5 gallons of solution transferred into the
Residual Solution Bucket in the beginning part of the Specific Gravity Test, section 7.1.

13.2 Tank Solution Disposal

There are five occasions in which you will need to discard solution. Those occasions are described as follows:

Expired Solution: If solution remains in the GranuFlo Dissolution Unit II Tank for more than 14 days.

Foreign Object: Any foreign object falling into the tank after the Granuflo® dry acid product has been
added.

Incorrect Catalog: Any batch preparation with incorrect Granuflo® dry acid product catalog(s)
numbers.

Specific Gravity Out of Range: Any batch prepared that has been found out of range.

GranuFlo Diss. Unit Needing Service: Any unit that contains solution that becomes inoperable.
C S
ONCENTRATE OLUTION
MIXED DRY ACID CONCENTRATE SOLUTION HAS A PH BELOW 6. THEREFORE, IF YOU MUST DISPOSE OF ACID
CONCENTRATE SOLUTION BECAUSE OF ONE OF THE ABOVE SITUATIONS, YOU SHOULD FOLLOW ANY
APPLICABLE DISPOSAL REQUIREMENTS OF YOUR LOCAL, STATE, AND /OR FEDERAL AUTHORITIES.
WARNING! Some chemicals used to neutralize acid concentrate solutions may cause splattering
and/or generate dangerous levels of gases when combined. For example, potentially dangerous levels
of carbon dioxide may be released when sodium bicarbonate is used as the neutralizing agent. Please
carefully consider these issues, including proper ventilation, if neutralization is required.
Immediately after a tank disposal, step unit to CYCLE COMPLETE, press STEP MODE button to turn OFF,
then ensure that the water inlet valve is open and perform two (2) RINSE CYCLES by pressing the RINSE
CYCLE start button and by pressing it again when the first RINSE CYCLE is completed.
After completing two (2) full RINSE CYCLES visually inspect if there is any powder deposits remaining in the
tank. These can be removed by running additional RINSE CYCLES in the unit.
Immediately after rinsing the tank clean, make a batch of Dry Acid Product. Leaving the GranuFlo I
Dissolution Unit with only treated water or wetted with only treated water leaves the Unit susceptible to
bacterial growth.

CAUTION! D
O NOT ALLOW THE
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RANU LO RY
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ONCENTRATE OLUTION
D P
ISPOSAL ROCEDURE
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NIT TO REMAIN FULL OF WATER WITHOUT THE ADDITION OF
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CID RODUCT ACTERIAL GROWTH MAY OCCUR
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RESENIUS
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EDICAL ARE
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