11
Maintenance
A regular scheduled system maintenance program is important in keeping your system at it’s best performance. Always fol-
low start-up procedures after the system has been shut down for maintenance.
Routine Inspection
Visually inspect this system, looking for any leaks or unusual noises.
Verify the pump is operating and that the pump inlet connection is secure. Also verify that the supply line is not
blocked by debris or restricted in any way.
Ensure that the controller is properly working, and that all backflush settings are properly adjusted. Check that the
system is not backflushing too often by Pressure Differential (PD gauge).
Check the system pressures. Make sure the Pressure Differential (PD) gauge is set at the correct PD setting and that it
properly initiates a backflush. Be sure the system pressure never exceeds 50 PSI, vessel pressure rating.
Manually start a backflush to make sure both valves are actuating and the filter is backflushing properly.
Seasonal Maintenance
Remove the filter vessel cover. Check the sand media condition and replace if necessary. If the sand media is
removed, inspect the internal piping assemblies. Clean and lubricate the O-ring before reattaching the cover.
Inspect the system for any leaks. This should include all of the union couplings. The O-rings should be lubricated
with silicon gasket grease to prevent them from drying and cracking.
Check all of the 3-way valves to make sure they are operating properly. If the valves are not rotating correctly, remove
the tops and inspect the motor / gears.
Contact Miller-Leaman customer service if this condition exists.
Tow erGuard - Tow er Model Spare Parts List
TGSS Part Number
Part Description
Qty per Filter
PS01328
20 inch Sand Filter Vessel - Complete Assembly
1
PS01329
24 inch Sand Filter Vessel - Complete Assembly
1
PS01330
30 inch Sand Filter Vessel - Complete Assembly
1
ML21334
Outlet Gate Valve Assembly
1
PS00034
Pressure Gauge 0-150 PSI range, Dry
1
ML21354-01
Differential Pressure Gauge 15 PSID range
1
PS00411-1HP-1P
1.0 HP - 44GPM 1 Phase Pump Motor
1*
PS00411-1HP
1.0 HP - 44GPM 3 Phase Pump Motor
1*
PS00295-1.5D1P
1.5 HP - 62GPM 1 Phase Pump Motor
1*
PS00295-1.5D
1.5 HP - 62GPM 3 Phase Pump Motor
1*
PS00295-2C1P
2 - HP - 98GPM 1 Phase Pump Motor
1*
PS00295-2C
2 - HP - 98GPM 3 Phase Pump Motor
1*
PS00373
Mechanical Seal for NPE Series Pumps
1
PS01827
Trap Assembly, Pump Pre Filter
1
ML20270 -01
Actuator Flow Valve #1 Upper - Tower model
1
ML20270 -02
Actuator Flow Valve #2 Lower - Tower model
1
ML20995-20
Motor Starter Box - Complete Assembly
1
ML20639 -04L
MAXIM-4
Controller box - Tower model
1
Figure 3
- TowerGuard - Tower Backflush Model Spare Parts List
* Note - Selection is System dependent.
TowerGuard - Tower Backflush Model
Spare Parts List
