14 Culligan® Culligan Top Mount (CTM) Water Softeners
14 Cat. No. 01029401
Drain Line
Proper discharge height and distance of the drain line will be dependent on the pressure supplied to the valve. Discharge
to a nearby floor drain will cause no backpressure, if the drain line needs to run overhead, the maximum height is 10’ at
the minimum supply pressure without decreasing vacuum on the brine line.
Make sure unit is properly located to the drain, refer to “Locate Softener” on page 6.
WARNING! Build an anti-siphon or drain line using an air vent.
WARNING! Do not make a direct connection to the drain. Provide an air gap, that conforms to state
and local sanitation codes and to premit the observation of drain flow.
Figure 11.
Siphon
Break
Air
Gap
Drain
Min. Standpipe Height
25% of Discharge Height
CAUTION! Securely fasten and support drain
piping to prevent damage to the
valve and allow for 1/4” of move-
ment during regeneration.
Min. Diameter:
1” ID
NOTE Hard piped drains should include a union
for ease of service.
1.5” Drain
Adapter
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