Overflow Line Connection; Brine Line Connection - Pentair FLECK 3150 NXT Installer Manual

5.12. Overflow line connection

In the event of a malfunction, the brine tank overflow fitting will direct "overflow" to the drain instead
of spilling on the floor. This fitting should be on the side of the brine tank. Most tank manufacturers
include a post for the tank overflow connector.
To connect the overflow line, locate the hole on the side of the tank. Insert the overflow fitting into the
tank and tighten with plastic thumb nut and gasket as shown below. Attach a 25.4 mm (1") I.D. tubing
(not supplied) to fitting and run to drain.
Do not elevate overflow higher than overflow fitting.
Do not tie into the drain line of the controller unit. The overflow line must be a direct, separate line
from overflow fitting to drain, sewer or tub. Allow an air gap as per drain line instructions.
Caution
Floor drain is always recommended to avoid flooding in case of overflow.

5.13. Brine line connection

Mandatory
The brine line must be built with 1" PVC rigid tube.
Caution
Flexible and semi-flexible hoses may shrink because of the vacuum during brine draw.
The brine line from the tank connects to the valve. Make the connections and hand tighten. Be sure
that the brine line is secure and free from air leaks. Even a small leak may cause the brine line to drain
out, and the softener will not draw brine from the tank. This may also introduce air into the valve,
causing problems with the valve operation.
Most installations utilize a tank check valve.
Ref. MKT-IM-010 / B - 28.05.2018
Installer Manual Fleck 3150 - NXT - Installation
Overflow fitting
Drain tubing
Secure hose in place
Air gap
Drain
53 / 122