Installer manual Evolio 255 740-760 - Installation
34 / 90 Ref. MKT-IM-037 / D - 25.10.2021
If available, use a floor drain or sump drain, but it is also possible to use a sump pit, dry well,
clothes washer drain, laundry tube or sanitary sewer line with sink type trap.
The drain line should be as short as possible and the unit should not be more than 12.2 m from the
drain. Use an appropriate adapter fitting to connect a 12.7 mm (½") plastic tubing to the drain line
connection of the valve if the drain line is shorter than 6 m. Use a 19 mm (¾") tubing if the drain is
longer than 6 m or if the backwash flow rate is greater than 22.7 L/min.
Use appropriate fittings to connect the 19 mm (¾") tubing to the drain connection on the valve.
Where the drain line is elevated but empties into a drain below the level of the valve, form a 18 cm
loop at the far end of the line so that the bottom of the loop is level with the drain line connection.
This will provide an adequate siphon trap.
Where the drain empties into an overhead sewer line, a sink-type trap must be used.
Also select a firm hose that will not soften and collapse or shrink at high temperature, at
suspension points or at sharp bends. Clamp the drain line securely to a rigid surface to prevent it
from moving during regeneration.
Info
Plumbing codes do not allow a direct connection into any sanitary or storm drain,
sewer lineor trap.
Waste connections or the drain outlet shall be designed and constructed to provide
connection to the sanitary waste system through an air-gap of at least 5 cm.
This is usually required so sewer backup will not be back-siphoned into the softener.
CAUTION
When running the drain line to a floor drain, the area around the drain may become wet
during the regeneration process.
Keep floor drain area clean at all times to prevent any damage.
4.5.7.1 Brine line connection
Info
The brine line is internal and is already connected.
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