Aqua-Pure CBW1001 - Manual (Page 13)

SECTION 4: MAINTENANCE
General Maintenance
1) At least every six (6) months, you should check the time of day setting. Power outages will cause the unit to lose time.
2) If your unit contains activated carbon, you must replace the carbon and gravel underbed at least every three (3) years. Replacement may be required
sooner, if the issue being treated reappears in the treated water or pressure drop becomes excessive.
3) Filter-Ag ® and fi lter sand will last an indefi nite period of time. It may be necessary to replace them, if the pressure drop across the fi lter becomes too
greate or fi ltration results drop.
4) Neutralizer media, calcium carbonate or magnisium oxide must be replenished at least annually. At the time of installation, it is advisable to mark the
level of the media on the outside of the tank. At a later date, you can shine bright light through the tank, comparing the current level with the mark. If the
level is down by more than three (3) inches, add media back to the original mark.
5) Birm should be replaced when iron reappears in the treated water and backwashing does not return the media to a functional form.
Special Service Instructions:
Under normal circumstances removal of the valve should not be required. However, if it must be removed, disconnect the plumbing attached to the bypass valve
fi rst. Then, rotate the valve head assembly to the left or counter-clockwise. Before attempting any disassembly, pressure should be relieved by shutting off water to
the system and opening a faucet. Upon reassembly, all o-rings should be lubricated with silicone grease. Reattach valve head assembly by rotating to the right or
clockwise until valve head assembly is seated to the tank hand tight. Reconnect the plumbing to the bypass valve.
Replenishing Media:
CAUTION
To reduce the risk associated skin, eye, and respiratory tract irritation from gravel and fi lter media during installation:
• Gravel and several types of fi lter media may be used in this product, depending upon the application. During installation, dust may cause irritation to skin, eyes,
and respiratory tract.
• Utilize a NIOSH-approved dust fi lter mask, protective gloves, and appropriate eye protection when handling and pouring gravel and fi lter media.
• To request an MSDS relating to this product, call 203-238-8965 or go to www.3M.com , select country, and use the search engine to search MSDS. For emer-
gencies, call 800-364-3577 or 651-737-6501 (24 hours).
Threaded Tank Models: CBW1001, CBW1501, CBW2001 (For Dome Hole Tank Models: CBW1001DM, CBW1501DM, CBW2001DM, please refer to media
replacement instructions on page 4-2):
1) Pressure must be relieved on water treatment system by turning the bypass valve to the bypass position. Then initiate an immediate manual backwash
cycle as described on Page 3-1.
2) Disconnect the power cord from the electrical outlet.
3) Remove the drain line for the control valve. Remove the control valve by rotating the valve head assembly to the left or counter-clockwise and set aside to
reassemble after media is loaded into the tank.
4) Using fl exible tubing, insert down the distributor tube and siphon the water from the media tank to aid in adding or replacing fi lter media. Cover the
distributor tube with the centering tool to prevent media from entering the distributor tube.
a. If using calcite, magnesium oxide or neutralizer media, add the media you are using to the line on the side of the media tank. Then refi ll the media
tank with water utilizing a hose or clean bucket. Proceed to Step # 5.
b. If utilizing activated carbon media that needs to be entirely replaced you will need to empty the media tank of both the gravel underbed and media. The
use of a garden hose and several buckets to place the spent media into is helpful. The changing of the media should take place outdoors as this can be
messy. Once the media tank is emptied, you can rinse the media tank out and inspect the distributor for damage or fi nes being lodged into the slots of
the basket assembly. Clean as required before loading the media with gravel or fi lter media. Place the distributor into the media tank and ensure it is in
the dimple on the bottom of the media tank. Utilizing the extension tube, red cap and funnel place over the distributor tube and into the opening of the
fl anged tank. Next take the correct amount of gravel and dump into the media tank. Hold the distributor tube and gently shake the media tank to level the
gravel in the media tank. Next load the fi lter media into the media tank to the proper level. This can be determined by observing the media level line on
the outside of the media tank. Gently shake the media tank to level the media. Using a hose or clean bucket fi ll the media tank with water to help saturate
the fi lter media before placing the control valve on the media tank. Using a clean rag or paper towel, wipe the opening of the media tank to remove any
media fi nes before attaching the control valve. Dispose of spent media in accordance with federal, state, and local regulations.
5) Prior to reattaching valve head assembly to the tank, inspect the o-ring for wear. If none, lubricate with silicone grease or water. Reattach valve head
assembly by rotating to the right or clockwise until valve head assembly is seated to the tank hand tight.
6) Reattach the bypass valve to the control valve and slowly open the bypass. Allow the backwash fi lter system to fi ll with water and set for the required
time period.
7) Plug the control valve into the electrical outlet and set the time of day on the display.
8) Once the saturation time has been achieved, manually initiate an immediate backwash (see Page 3-1). Backwash the media until the water runs clear.
Observe the color of the water in the drain line discharge to determine if is has washed long enough. The water should be fairly clear and absent of fi nes
before quitting the cleaning process. If not, proceed to regenerate the unit again until the water runs clear to the waste drain.
9) Replenishing or re-bedding of media tank is now complete.
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