25
Replacing the Media
NOTICE
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. Dispose of old media and/or con-
tainers in accordance with local, regional, national, and/or
international regulations.
1. Mark the location of the mineral tanks on the floor incase they
need to be moved once all water, resin and gravel has been
removed. This will help with realignment of the plumbing after
media replacement. DO NOT attempt to move a mineral tank
that contains media and or water.
2. For PWS10T Series Systems- Place the bypass valve into the
bypass position.
For PWS15T Series Systems open the bypass valve.
3. For PWS15T series systems, close the inlet and outlet
isolation valves.
4. Locate “Manually Initiating a Regeneration” on page 16 for
SXT controllers and follow the steps to place the system in
the backwash position. This relieves any pressure inside both
mineral tanks. Once the system cycles into the backwash
position, confirm the top arrow of the control valve position
indicator (See page 11 Figure 1) is pointing to Backwash,
then unplug the control valve from the power outlet to keep
the system in the backwash position.
5. Disconnect the interconnecting tube assembly between the
main control valve and second tank adapter.
6. For PWS10T Series Systems- Disconnect the drain union
plumbing fitting, then loosen the screws for the bypass
mounting clips and separate the bypass valve from the
control valve.
For PWS15T Series- Disconnect the inlet, outlet, and drain
union plumbing fittings.
7. Disconnect the meter cable from the meter and from SXT P1
port located on the back of the control valve controller. Store
the meter cable in a safe location.
8. Disconnect the brine tubing from the control valve’s brine
connection port.
9. Disconnect the power supply cable from SXT P2PWR port
located on the back of the control valve controller.
10. Remove the control valve from the mineral tank by turning
the control valve counter-clockwise when viewed from above.
Keeping a firm grip on the control valve, continue to rotate
until it can be lifted off of the top of the mineral tank. Repeat
this step for the second tank adapter. Store the control valve
and second tank adapter in a safe location.
11. 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 and
must be reconnected.
12. Obtain a length of 3/4" sch. 40 PVC that is the same height
as the mineral tank and a length of 1" clear braided poly-vinyl
hose. The hose must be long enough to reach the nearest floor
drain. (Both of these can be acquired at a local hardware store).
13. 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.
14. Insert a garden hose into the bag side of the poly-vinyl 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 to. The bag end
of the poly-vinyl 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.
15. Continue to siphon resin until it is completely evacuated from
both mineral tanks. Gravel will clogged the siphon hose and,
if it must be removed due to fouling, or to repair or replace a
damaged distributor tube and screen, must be evacuated by
other means.
16. If replacing gravel, inspect lower distributor screens for
damage and replace if necessary.
17. To add new media and reconnect control valve to mineral
tank follow General Installation steps 3-4J located on page 9
of this manual.
18. For PWS10T Series- Reconnect the control valve to the
bypass valve assembly and drain line to the control valve.
Then place the bypass valve into the service position.
For PWS15T Series- Reconnect inlet, outlet, and drain
plumbing to the control valve and tighten the plumbing union
fittings on each of these plumbing lines.
19. Reconnect brine tubing to brine connection port of control valve.
20. Reconnect meter cable to meter. Then reconnect the other
end of the meter cable to the SXT P1 port located on the
back of the control valve controller.
21. Reconnect the power supply cable to the SXT P2PWR port
located on the back of the control valve controller.
22. Open the inlet isolation valve slightly, until water can be heard
flowing through the isolation valve and allow the mineral tank
to fill with water. Air will come out of the drain line until the
mineral tank is full of water.
23. Once water flow at the drain line is observed, plug the sys-
tem into the power outlet and advance the system through
the remaining steps of regeneration by pressing the extra
cycle button each time the control valve come to a stop until
the position indicator arrives in the “Stand By” position. See
Manually Initiating a Regeneration for help.
