The point-of-entry 58SXT-2.5-MZ 10-16 GPM Micro-Z well water treatment sediment filter is a whole house system designed for larger homes with 4 to 5 bathrooms. It reduces cloudy water, dirt, rust, silt, ferric iron, and turbidity before water reaches fixtures, appliances, plumbing, and downstream water treatment equipment.
This system uses Micro-Z granular filtration media with a Fleck 5800SXT digital backwashing control valve to automatically flush trapped sediment without chemicals or salt, and without routine media replacement. It supports a 10-16 GPM service/peak flow range.

Model number: 58SXT-2.5-MZ
Flow rate: 10 to 16 GPM
Media type: Micro-Z granular well water treatment media
Amount of media: 2.5 cu. ft. / 30 lbs.
Micron rating: Nominal 5 to 10 micron filtration
Control valve: Fleck 5800SXT digital backwashing control valve
Tank size: 13-inch x 54-inch Structural Polyglass tank
Overall system height: 63.5 inches
Operating pressure: 20 to 125 PSI
Operating temperature: 36°F to 120°F
Media bed life: Unlimited
Shipping weight: 196 lbs.
Country of origin: Made in the USA
What is the 58SXT-2.5-MZ 10-16 GPM Micro-Z Well Water Treatment Sediment Filter Used For?
- Whole house sediment reduction
- Cloudy water improvement caused by dirt and debris
- Ferric iron and rust particle reduction
- Silt and turbidity reduction
- Well water pretreatment before other filtration equipment
- Protecting fixtures, appliances, plumbing, UV systems, softeners, and downstream filters
- Larger homes with 4 to 5 bathrooms that need 10 to 16 GPM flow support
What it reduces
- Dirt
- Rust particles
- Ferric iron
- Silt
- Turbidity
- Suspended sediment and particulate
This system is not a water softener, carbon filter, sulfur filter, lead filter, or UV disinfection system. If your water also has hardness, bacteria, chlorine, sulfur odor, or dissolved contaminants, additional treatment may be needed based on water testing.
Why Micro-Z media matters
Micro-Z is a high-performance granular well water treatment media with a unique zeolite structure. It provides 2.8 times the load capacity of sand, supports higher service flow rates, and uses 50% less water during backwashing than sand filters.
For homes with visible sediment or cloudy well water, Micro-Z is useful because it captures particulates in the media bed and flushes them to drain during the automatic backwash cycle.
Why the Fleck 5800SXT valve matters
The Fleck 5800SXT digital backwashing control valve automatically manages the backwash cycle. This helps clean and reclassify the media bed, reduce manual maintenance, and maintain more consistent sediment filtration performance over time.
System features
- Fleck 5800 digital backwashing control
- Structural polyglass tank
- Micro-Z uses 50% less water for backwashing compared to sand filters
- Nominal 5 – 10 micron filtration
- Media never needs to be replaced!
- No chemicals or salts used
- Stainless steel bypass with 1″ FNPT ports
- Micro-Z granular filtration media
- Automatic sediment removal
- Media never needs to be replaced under normal use
- Sized for a large house with 4 to 5 bathrooms
Compatibility checks before ordering
Before buying, confirm:
- Your main concern is cloudy water, dirt, rust, silt, ferric iron, or turbidity
- Your home’s peak flow demand fits the 10 to 16 GPM range
- Your home has 4 to 5 bathrooms or a similar water demand
- You have space for a 13-inch x 54-inch tank with 63.5 inches of overall system height
- You have a drain location for backwash discharge
- You have a nearby electrical outlet for the Fleck 5800SXT control valve
- Your plumbing can connect to 1-inch FNPT ports or be properly adapted
- You have additional treatment planned if you need disinfection, softening, chlorine removal, sulfur odor treatment, or dissolved contaminant reduction
What’s included
- Fleck 5800SXT digital backwashing control valve
- 13-inch x 54-inch structural polyglass tank
- 2.5 cu. ft. Micro-Z filtration media
- Stainless steel bypass with 1-inch FNPT ports
- Internal distributor/riser assembly
- Well water system assembly instructions
Install difficulty: Moderate to advanced
This is a main-line point-of-entry installation that requires plumbing into the home’s water line, routing a drain line for backwash discharge, connecting power to the control valve, and programming the Fleck 5800SXT valve. A plumber or water treatment installer is recommended for most homeowners.
Installation: 58SXT-2.5-MZ 10-16 GPM Micro-Z Well Water Treatment Sediment Filter
- Install the system on the main water line after the pressure tank and before water branches throughout the home.
- Choose a level location with access to power, a drain, and enough clearance for the 63.5-inch overall system height.
- Shut off water and depressurize the plumbing system.
- Position the Structural Polyglass tank securely on a level surface.
- Connect the inlet and outlet plumbing to the stainless steel bypass with 1-inch FNPT ports.
- Route the drain line according to the assembly instructions and local plumbing requirements.
- Plug in and program the Fleck 5800SXT control valve.
- Slowly pressurize the system and check all fittings, the bypass, and valve connections for leaks.
- Run the startup and backwash steps in the well water system assembly instructions before normal service.
- Recheck for leaks and confirm normal flow after startup.
Maintenance Schedule
- Backwash schedule: program according to water conditions and household usage
- Monthly: confirm the system is cycling normally and check the drain line, valve, bypass, and fittings for leaks
- Every 6 to 12 months: review valve settings and adjust backwash frequency if sediment load or water use changes
- Media replacement: not required under normal use; Micro-Z media bed life is listed as unlimited
- As needed: service the valve or adjust programming if sediment returns, flow declines, or the system does not cycle properly
Replacement Triggers
Service, inspect, or adjust the system if you notice:
- Cloudy water returning after filtration
- Dirt, rust, silt, or sediment downstream
- Flow rate dropping and not recovering after backwash
- Backwash cycle not running as programmed
- Water running to drain outside the expected cycle
- Valve alarms, programming loss, or cycle issues
- Leaks around the bypass, valve, fittings, or drain line
Common Questions: 58SXT-2.5-MZ 10-16 GPM Micro-Z Well Water Treatment Sediment Filter
Q: What does the 58SXT-2.5-MZ Micro-Z system do?
A: It reduces dirt, rust, silt, ferric iron, turbidity, and suspended sediment in well water.
Q: What size home is the 58SXT-2.5-MZ Micro-Z system for?
A: It is sized for larger homes with 4 to 5 bathrooms and a 10 to 16 GPM flow range.
Q: What is the micron rating on the 58SXT-2.5-MZ Micro-Z system?
A: The system provides nominal 5 to 10 micron filtration.
Q: Does the 58SXT-2.5-MZ Micro-Z system use salt or chemicals?
A: No. It uses no chemicals or salts.
Q: Does the Micro-Z media need to be replaced?
A: No. The media bed life is listed as unlimited under normal use.
Q: Does the 58SXT-2.5-MZ Micro-Z system need a drain?
A: Yes. It is an automatic backwashing system, so a drain line is required for backwash discharge.
Q: Does the 58SXT-2.5-MZ Micro-Z system need electricity?
A: Yes. The Fleck 5800SXT digital control valve requires power.
Q: Is the 58SXT-2.5-MZ Micro-Z system a water softener?
A: No. It reduces sediment and particulate matter. A water softener is used for hard minerals.
Q: Will the 58SXT-2.5-MZ Micro-Z system remove bacteria?
A: No. This system is not a disinfection system. If microbial protection is needed, add UV disinfection after proper prefiltration.
Q: What are the connection sizes?
A: The system includes a stainless steel bypass with 1-inch FNPT ports.
Choose the 58SXT-2.5-MZ Micro-Z whole house system when you need automatic sediment removal for cloudy well water, rust particles, silt, turbidity, and 10 to 16 GPM point-of-entry flow.
Cloudy water due to dirt and debris in the water.
Well water system assembly instructions included with this system.










