Lync WQ-SF
SECTION 5: MAINTENANCE
L- OMM-004_A
•
2/23/2022
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4.
Maintenance
4.1.
Replacing the Ion Exchange Resin
NOTE:
Ion exchange resin may need to be replaced periodically due to physical breakdown caused
by chlorine/chloramine disinfectants, or fouling caused by certain metals such as iron and
manganese.
1. Open the bypass valve.
2. Close the inlet and outlet isolation valves for the mineral tanks needing media replacement
3
. Locate “Initiating a Manual Regeneration” in section 3.3. of this manual and follow the steps to
place each mineral tank in the backwash position. This relieves any pressure inside the
mineral tank. Once the system cycles into the backwash position, unplug the control valves
from the power outlet to keep the systems in the backwash position.
4. For each mineral tank, disconnect the meter cable from the top of the meter dome and from
the P5 port located on the back of the control valve controller. Store the meter cable(s) in a
safe location.
5
. Disconnect the brine tubing from the control valve’s brine connection port.
6. Disconnect the power supply cable from P14 port located on the back of the control valve
controller.
7. Disconnect interconnecting communication cables from the P1 and P3 ports located on the
back of the control valves.
8. Disconnect the inlet, outlet, and drain union plumbing fittings.
9. Remove the control valve from the mineral tank by turning the control valve counterclockwise
when viewed from above. Keeping a firm grip on the control valve, continue to rotate until it
can be lifted off from the top of the mineral tank. Store the control valve in a safe location.
10. Note the top of the distributor tube. It must be flush with the top of the tank. If it is above the
top of the tank by more than 1/2" the distributor tube may have become disconnected from
the distributor screen in the bottom of the mineral tank.
11. Obtain a length of 3/4" sch. 40 PCV that is the same height as the mineral tank and a length
of 1" clear braided polyvinyl hose. The hose must be long enough to reach the nearest floor
drain. (Both of these can be acquired at a local hard- ware store).
12. Insert one end of the pipe inside the hose and the other end of the pipe into the top of the
mineral tank and down into the resin media. Put the other end of the hose inside a water
permeable bag and locate the bag over the floor drain.
13. Insert a garden hose into the bag side of the polyvinyl hose to fill the hose and PVC pipe with
water. Air will bubble out of the tank. Once all the air is out of the hose and pipe, remove the
garden hose from the polyvinyl hose to establish a siphon. The resin can then be siphoned
into the bag. Use the garden hose to maintain a full water level in the mineral tank. The bag
end of the polyvinyl hose must remain lower in elevation then the end of the PVC pipe in the
mineral tank to maintain the siphon. The bag will retain the resin while the water flows down
the drain. Use caution not to allow resin to enter the floor drain.
14. Continue to siphon resin until it is completely evacuated from the mineral tank. Gravel will clog
the siphon hose and, if it must be removed to repair or replace a damaged distributor tube
and screen, must be evacuated by other means.
