Brine Tank Connections; Hydraulic Connections; Drain Line Flow Connections - Autotrol Duplex Installation, Operation, Maintenance Manual

If top screens are supplied these should be attached next.
Slide the valves onto the riser tubes and gently push them
down onto the vessel treads. Screw the valves on until you
start to squeeze the main O rings and then finally give the
valves a final tighten by tapping the rear side of the valves
with the palm of your hand (fig A.6)
Fig A.6

2.5 Brine Tank Connections.

Attach the brine line tubing to the brine tank and valves using the connectors fitted to the
brine tank (Fig A.7), valve (Fig A.8), or air check bottle on 255 valve. (Fig A.9)
Fig A.7 Fig A.8 Fig A.9

2.5 Hydraulic Connections.

Interconnecting pipe work kits with bypasses and 1" BSP connections (Fig A.10) are supplied
for the ¾" or 1" valves; these can be connected using fixed or flexible pipe work.
Duplex systems with 2" valves do not come with interconnecting pipe work kits and will need
to be plumbed on site with connections to the 2" solvent weld tails provided.
Fig A.10

2.6 Drain Line Flow Connections.

Check the service and backwash flow rates (see technical information at the end of the
manual). If the service flow rates are exceeded then the softener will not give its full capacity
of soft water. The backwash flow rate should be limited by either internal or external drain line
flow controls (DLFCs). If the DLFC are external they should be listed on the packing
documents and should be screwed on to the waste connections of the valves. A drain hose
should then be attached which needs to terminate in an open drain (back pressure or a
kinked waste hose will cause the system to malfunction). If the DLFC is internal they will be
fitted inside the valves (normally used on vessels 10 inch diameter and smaller).
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