Curve D-DF Series Instruction, Operation And Maintenance Manual page 6

The drain outlet provided in the softener's valve and the salt tank's overflow lead to the drain. These
connections are independent of each other and have individual discharge to avoid any return.
Connecting the equipment to pipelines must be done with flexible hoses, which must comply with
current regulations, to prevent tensions and possible breakages in the valve's Noryl head.
4.2.3. Drain line connection
The system should be located as close to a drain as possible.
The drain level will be below softener's valve and less than 3 meters away. If this isn't the case,
please consult our technical department.
The drain line connection will be done with a flexible hose which has an interior diameter ( of
15mm.
The drain hose mustn't be connected to a ditch, drain line or sewer. Always
IMPORTANT:
leave an air gap between the drain and the general drain to prevent the possibility
of return through the drain. This could affect the system working properly.
4.2.4. Brine line connection
It will be necessary to install a brine tube and connect it to the suction inlet, on which will be
screwed on. Insure that the filter, insert and cone which are supplied with the kit have been
connected correctly
Suction intake
Check that all the fittings and couplings are tightened so that there is no air intake.
Filter Insert Cone Nut
ref: MA-ED-0008-EN-V16.0-MIÑO DESCALCIFICADOR D-DF-M3 & D-UF-M3.pdf
Figure 3.
Drain line and overflow connections.
6
Connection description