MARLO MGT 30M, Installation, Operation And Maintenance Manual

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MGT 45M – 450M 1-1/2” SINGLE NXT2
INSTALLATION
6
LOAD SOFTENER TANK
IMPORTANT: Be sure to visually inspect the lower laterals prior to loading the media. Check to make sure
each lateral is firmly threaded into the hub.
1. On Model MGT - 45 and 60 the softening media has been pre-loaded at the
factory. Skip this section and go to“Mount Control Valve Assembly”.
2. Fill a tank approximately 1/3 full of water using a hose, bucket, etc. Plug the
PVC distributor manifold pipe using a plastic cap, cork, rag, etc. No gravel or
resin should go into this distributor manifold pipe.
3. Verify the distributor manifold is center in the tank with the distributor resting
on the bottom of the tank. Verify the riser pipe is still plugged.
Note: Reference the specification table in the front of this manual for the
correct quantities of gravel and resin. These quantities are for each tank.
Make sure you have the required amounts on site before you begin.
4. With care not to damage any lateral, pour in the gravel provided for each
tank through the top opening in the tank and level out evenly. This will cover
the distributor assembly.
Note: Wetting the gravel in the bags before loading will eliminate the normal
amount of dust.
5. When gravel is loaded and leveling is completed, proceed as follows:
6. With the distributor riser pipe still plugged, add the proper amount of resin
supplied for each tank through the top opening in the tank.
Caution: The softener resin is very slippery. Take care when stepping on any spilled resin. Remove spilled
resin from standing surface immediately.
7. When loading is complete, remove plastic cap, cork, or rag that was used to plug the distributor riser pipe. Be
careful not to let any foreign debris fall into the pipe. The result could be damage to system.
8. Repeat instruction steps 1-7 for each softener tank if applicable.
MOUNT CONTROL VALVE ASSEMBLY
1. Verify that the distributor riser pipe is not plugged.
2. Lubricate the distributor o-ring on the bottom of the control valve with silicone.
3. Insert disperser in threaded base of control valve. The threaded base has a groove machined into the inside of the
threaded part of the base to allow for the installation of this disperser.
4. Screw control valve into top opening of tank making sure the distributor riser pipe slides easily through the
distributor o-ring. Care must be taken not to “nick” this o-ring as hard water leakage could result.
5. Tighten down the control valve to ensure positive o-ring seal at top of tank.
6. Repeat instruction steps 1-5 for each softener tank (if applicable).