Activated Carbon Water System

The high pressure water system is designed to filter tap water of residual dissolved organic matter for distribution to the overhead water system.  It is composed of two, parallel activated carbon filters and a micron filter.  

Operating notes:

PVC tubing cannot handle the full flow (both hot and cold taps open).  Only the wire reinforced tubing can support full flow.  The system is capable of running at capacity with only one filter online.  If this scenario is needed, ensure the flow path is open to the online filter before operating.  Slotted pipes are located on the inside entrance and exit of each filter. 

Notes for replacing activated carbon:                       

The system can run with only one filter online.  It is not necessary to switch out of an AC control state in ProCoDA to take a filter offline.  

Supply list

• bucket
• additional activated carbon
• flat head screw driver
• hand cart
• 6” cut of 8in PVC pipe
• ¾” socket and pneumatic drill
• Crescent wrench
• Trash can

1)      Close the valves at the top and bottom of the filter to be removed.

2)      Disconnect the union at the top of the unit (expect water to be in the line)

3)      Drain the filter from the bottom using a bucket

4)      Disconnect the union at the bottom the unit

5)      Place the 6” cut of pipe on the bottom of the hand cart.  Tip the unit over and invert so that the top cap is in the 6” cut.  The unit can now be moved but keep in mind that it’s top heavy.

6)      Remove the 4 standoffs.  Use the pneumatic drill and wrench to separate nuts from the bolts. Remove the elbow and connected unit.

7)      Remove the nut from the bulkhead fitting and lift off the blind flange and gasket.

8)      Lift out the slotted pipe manifold.

9)      Dump the activated carbon in the trash.  One will probably need a buddy to help empty the filter.

10)  Fill the filter with fresh activated carbon to about 1 foot from the top of the unit. 

11)  Place the slotted pipes in and hold at a height where the bottom of the bulkhead will be in contact with the blind flange.  Continue to fill the unit with activated carbon around the slotted pipes taking care not to get activated carbon in the slotted pipes (through the bulkhead opening) or where the flange gasket will contact the flanges.

12)  Clean off excess carbon and place flange gasket and blind flange back on the unit.

13)  Replace the bulkhead nut and PVC elbow unit 

14)  Secure the flanges together with nuts and bolts.  Note: there is an order to tightening the flanges.  There are numbers marked for each bolt – tighten them in that order.  Replace the 4 standoffs.

15)  Move the filter back to its home and invert.  Adjust the standoffs so the unit is stable.

16)  Place a bucket at the top of the system. Connect the system to the tap (there is a line that bypasses the solenoid valves that can be used) and fill the unit with water from the bottom to force air. The bucket will catch the water once the unit is full.

17)  Reconnect the union at the top.

18)  Open all valves to the unit.

Useful Part Numbers