Troubleshooting guide

7
IMS/IMB INSTALLATION INSTRUCTIONS:
Special precautions must be made when connecting
the drain line. Hard piping is recommended. During
backwash, high volumes of water and air escape
rapidly, causing a flexible drain line to whip and thrash.
Please attach drain line securely with rigid piping.
Two check valves are supplied with this shipment. One is a 3/8"
John Guest push-in type with screen and the other is a 1" stainless
female threaded check valve.
The 3/8" John Guest check will have a small piece of gray
tubing inserted in it. Insert gray tubing into the brine elbow
on the control valve (see Drawing A).
The 1" stainless steel female check valve should be installed on the
inlet side of the control valve so the air drawn in cannot escape
through the inlet (see Drawing B for flow direction).
Note: Plumbing codes may require an expansion tank after water
treatment device and water heater for thermal expansion control.
After installation is complete, fill unit in the backwash like usual.
Let water drain slowly, increasing flow until clear.
CAUTION: Media is dry and filling
with water too quickly in
backwash will result in
media plugging the drain
and valve assembly.
Place unit in the next cycle which is down brine and let the unit
finish on its own. This will allow the unit to draw in the air so it
can function properly.
A
B
Note: Impression Series
®
sulfur units may require additional disinfection, especially
in warm weather climates. Please contact dealer for more information.