Master Water Conditioning MBA Series

Questions and Answers

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Brittany StephensAug 4, 2025
What to do if my Master Water Conditioning Water Filtration Systems is leaking to drain?
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  Debbie WilliamsAug 4, 2025
  If your Master Water Conditioning Water Filtration System is leaking to the drain, it could be due to several reasons. First, ensure that a drain line flow control is properly installed. Secondly, confirm that your water pressure is above the minimum of 25 psig (172kPa). Finally, inspect the valve disks for damage or obstructions; replace any damaged disks or clear any obstructions.
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Michael TylerAug 11, 2025
Why is there a loss of water pressure in my Master Water Conditioning MBA?
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  Natalie HendersonAug 12, 2025
  If your Master Water Conditioning Water Filtration System experiences a loss of water pressure, it might be due to a fouled filter media bed caused by iron accumulation. To resolve this, clean the control valve and re-bed the mineral tank with new media. Another potential cause is that the slots in the riser pipe or laterals are filled with media fines. In this case, inspect and clean the distributor pipe slots as needed.
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Michelle LeeAug 19, 2025
How to fix a Master Water Conditioning MBA that fails to regenerate and has dirty water?
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  marvincalhounAug 19, 2025
  If your Master Water Conditioning Water Filtration System fails to regenerate and the water is dirty, there could be several reasons. First, check if the power supply to the 742 control has been interrupted. Determine the cause of the interruption, correct it, and reset the time of day. Second, see if water pressure has been lost and restore it. Third, the 742 Logix timer programming might be corrupted; reprogram the timer assembly. Alternatively, the 742 Logix timer might be defective, requiring replacement of the timer assembly. Also, ensure that the manual bypass valve is closed. Lastly, check for leaks at the riser pipe seal, ensuring it's properly sealed at the o’ring seal and inspecting the pipe for cracks.
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julie43Aug 27, 2025
What to do if there is loss of media to drain in Master Water Conditioning MBA Water Filtration Systems?
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  sherrigrahamAug 27, 2025
  If you are experiencing loss of media to drain in your Master Water Conditioning Water Filtration System, it is likely that no flow control is installed in the drain line. To fix this, install a drain line flow control.

Summary

System Description

Filter Positioning Guidelines

Filter Tank Loading Instructions

Logix Control Valve Installation

Service and Drain Piping

Typical Piping Layout

Electrical Requirements

Logix Control Valve Electrical Connection

Filling Filter with Water

Logix Control Valve Timer Settings Overview

Time of Day Setting

Day of Week Setting

Time of Regeneration Setting

Regeneration Frequency Setting

Final Installation Check

Troubleshooting Guide

700 Series Controller Troubleshooting

255 Valve Exploded View

255 Valve Parts List

Logix 700 Series Controllers Parts List

Master Water Conditioning MBA Series Specifications

General

Type	Water Softener
Model Series	MBA Series
Mineral Tank Material	Fiberglass
Brine Tank Material	Polyethylene
Application	Residential
Hardness Removal Capacity	Up to 48, 000 grains
Connection Size	1 inch