Hydrotech PURA ADDON SERIES - Manual (Page 23)

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CLEANING, DISINFECTING, AND ROUTINE MAINTENANCE PROCEDURE
CLEANING PROCEDURE
NOTE: Refer to individual System Assembly and Activation
Procedures to identify specific components matching
the descriptions shown in this procedure.
1. Disconnect system from electrical outlet.
2. Mix a mild cleaning solution of dish soap and clean potable water
in the plastic bucket.
3. Close feed water supply valve and open downstream faucet to
relieve system pressure.
CAUTION:
Do not attempt to remove sumps until water flow
stops. This reduces pressure inside the system so
sumps may be safely removed.
NOTE: For UVB and UV1 Models only: Remove and save
Teflon Sleeve as it will be used again with replacement
EPCB™ Carbon Filter.
4. Remove each sump. Remove each filter as its sump is removed.
Discard the filters. Use sump wrench to remove stubborn sumps.
NOTE: Use sanitary rubber gloves for this procedure to avoid
contaminating cleaning solution or filters. Wear gloves
whenever cleaning components or handling new
filters.
5. Clean quartz sleeve carefully using vinegar to remove hardness.
Do not use abrasive materials. Rinse sleeve thoroughly with clean
potable water. Replace any sleeve that is damaged or will not
come completely clean.
6. Remove sump “O” rings and wash with cleaning solution. Rinse
them well with clean potable water. Inspect “O” rings for damage
(i.e., nicks or scratches). Replace damaged “O” rings.
CAUTION: Use care when cleaning UV head. Do not get the UV
control module or connectors wet.
7. Clean sumps and heads, inside and outside with washcloth and
cleaning solution. Do not use abrasive materials.
8. Rinse sumps and heads with clean potable water.
9. For UV20 Model only: Clean and rinse the Stainless Steel
Channeling Sleeve (Item 3) and Sleeve Gasket (Item 4) shown in
Figure 2.
10. Inspect head and sump “O” ring groove area for damage (i.e.,
nicks or scratches). Replace damaged components.
11. Place a small amount of silicone based “O” ring lubricant on
the filter sump “O” ring. Install the “O” ring into the filter sump
groove.
DISINFECTION PROCEDURE
CAUTION: WEAR SAFETY GLASSES AND SANITARY RUBBER
GLOVES WHILE PERFORMING THIS PROCEDURE.
CAUTION: EXCESSIVE CONCENTRATIONS OF BLEACH WILL
DAMAGE PLASTIC AND RUBBER COMPONENTS.
Rinse all parts that contact bleach thoroughly with
clean potable water.
CAUTION: Read the “WARNINGS” on the bleach container before
using.
CAUTION: Handle sanitizing solution carefully. Avoid contact with
unprotected areas.
1. Disconnect system from electrical outlet.
2. Mix sanitizing solution:
a. For UVB, UV1, and Addon Models only:
Mix 59 ml (1/4 cup) of household bleach and 177 ml (3/4
cup) of clean, potable water in the bucket. Mix the solution
well.
b For UV20 and UVBB Models only:
Mix 237 ml (1 cup) of household bleach and 237 ml (1 cup)
of clean, potable water in the bucket. Mix the solution well.
CAUTION: Use care when sanitizing UV head. Do not get the UV
control module or connectors wet.
CAUTION: TIGHTEN SUMPS BY HAND ONLY. Do not use tools
as they will over-tighten and may damage sump. Take
care not to cut or pinch “O” rings or gaskets. Use
sump wrench for removal only.
3. Add sanitizing solution into system:
a. For UVB, UV1, and Addon Models only:
Add 237 ml (1 cup) of sanitizing solution to the sump that
contains the UV lamp.
b. For UV20 and UVBB Models only:
Add 473 ml (2 cups) of sanitizing solution to the sump that
contains the UV lamp.
RECOMMENDATIONS
HAVE ALL COMPONENTS ON HAND AND READY BEFORE BEGINNING PROCEDURE
A CLEAN WORK AREA AND EQUIPMENT ARE ESSENTIAL TO PROPERLY CLEAN AND/OR DISINFECT THE SYSTEM
(i.e., CLEAN HANDS, TOOLS, WORK SURFACE, AND CONTAINERS)
EQUIPMENT NEEDED
Safety Glasses
Rubber Gloves, Sanitary
Wash Cloth, Clean and Lint-Free
Liquid Dish Soap
Household Bleach – Unscented Only
(5 ¼% Sodium Hypochlorite)
Plastic Bucket
“O” Ring Lubricant, Silicone Based
REPLACEMENT FILTERS REPLACEMENT UV COMPONENTS
Refer to system Parts List for specific component part numbers. Refer to system Parts List for specific component part numbers.