Installation
6
6. Drain Line
: Make sure that the drain handles the backwash rate of the system. Solder joints near the drain must be
done prior to connecting the drain line flow control fitting. Leave at least 6” between the drain line flow control fitting and
solder joints. Failure to do this could cause interior damage to the flow control. Install a 1/2” I.D. flexible plastic tube to
the Drain Line Assembly or discard the tubing nut and use the 3/4” NPT fitting for rigid pipe (recommended). If the
backwash rate is greater than 7 gpm, use a 3/4” drain line. Where the drain line is elevated but empties into a drain
below the level of the control valve, form a 7” loop at the discharge end of the line so that the bottom of the loop is level
with the drain connection on the control valve. This will provide an adequate anti-siphon trap. Piping the drain line
overhead <10 ft is normally not a problem. Be sure adequate pressure is available (40-60 psi is recommended). Where
the drain empties into an overhead sewer line, a sink-type trap must be used. Run drain tube to its discharge point in
accordance with plumbing codes. Pay special attention to codes for air gaps and anti-siphon devices.
Note:
Drain line nut will not be supplied for units having a backwash rate greater than 7 gpm.
7. Brine Tank Connection
: Install the 3/8” O.D. polyethylene tube from the Refill Elbow to the Brine Valve in the brine
tank.
8. Overflow Line Connection
: An overflow drain line is recommended where a brine overflow could damage furnishings
or the building structure. Your softener is equipped with a brine tank safety float which greatly reduces the chance of an
accidental brine overflow. In the event of a malfunction, however, an overflow line connection will direct the “overflow” to
the drain instead of spilling on the floor where it could cause considerable damage. This fitting is an elbow on the side
of the brine tank. Attach a length of 1/2” I.D. tubing to fitting and run to drain. Do not elevate overflow line higher than 3”
below bottom of overflow fitting. Do not “tie” this tube into the drain line of the control valve. Overflow line must be a
direct, separate line from overflow fitting to drain, sewer, or tub. Allow an air gap as per the drain line instructions.
C A U T I O N
•
Never insert a drain line into a drain, sewer line, or trap.
•
Always allow an air gap between the drain line and the wastewater to prevent the possibility of sewage being back-siphoned into the conditioner.