Regeneration Details
SPLIT-FLOW REGENERATION is Miura's unique design for performing a regeneration. Brine flows through the resin from both the top and bottom, meeting at and draining from the middle.
Regenerating Salt Savings through Split-Flow Regeneration
- Soft Water Purity Decline: Normally the purity of soft water will deteriorate if the amount of regenerating salt is decreased. This is especially noticeable in raw water with high hardness.
- Efficient Split-Flow Regeneration: During split-flow regeneration the purity of soft water does not deteriorate even when low amounts of regenerating salt are used, which allows regenerating salt to be conserved
The table below illustrates how Miura's MW-U Water Softener differs in its regeneration process from conventional softeners.
Miura MW-U Water Softener | Conventional Water Softener |
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Regeneration Process
Backwash
- Water flows backwards through the resin to loosen up the resin that may have been compacted.
- Loosens up any contaminants that may be trapped within the resin.
- The drain opens during the Backwash stage and the water flows to the drain.
Make sure you perform before opening either tank to perform work/maintenance.
Regeneration Standby
- Can potentially pause the regeneration process.
- This can be initiated from external influence, such as inputs purposefully wired to prevent regeneration during certain situations.
- Internal influences can also cause this to occur, such as insufficient brine concentration in the brine tank.
Under normal operation, this stage is only a momentary pause in the regeneration process, moving onto the next stage quickly.
Brine Injection
- Brine is transferred out of the brine tank and injected into the resin tank
- The Brine Flowmeter measures the intake of brine, ensuring the proper amount is used.
- The MW closely measures the amount of brine that is used in a regeneration to ensure that 100% rejuvenation is achieved without over-injecting brine. This contrasts with other methods utilizing a timer during the brine stage.
The MW-U's brine plate is higher than the industry standard to prevent displacement of the brine solution and to allow for an adequate storage of saturated brine. This allows for a guaranteed volume of brine necessary for a successful regeneration.
NOTE: Large Model MW-U Softeners have a secondary Brine Injection stage and a secondary Slow Rinse stage to ensure a complete wash has occurred and avoid chloride spikes.
Slow Rinse
- Slowly rinses the resin tank and control valve to remove any residual salt and hardness ions from the water softener
- This is to prevent brine or hardness from being fed into the boiler system
NOTE: Large Model MW-U Softeners have a secondary Brine Injection stage and a secondary Slow Rinse stage to ensure a complete wash has occurred and avoid chloride spikes.
Fast Rinse
- Rinses the resin tank at a faster flow rate to fully rinse the resin tank of any residual salt and hardness
- This step ensures that no excess chloride ions are trapped in the tank.
Refill
- Refills the brine tank with water so that brine can be made for the next regeneration cycle.
Service Standby
- The recently regenerated resin tank will go into standby, awaiting its turn to operate.
Routine Maintenance
Routine Maintenance | Frequency |
Soft Water Check | Daily |
Regenerating Salt Check | Daily |
Raw Water Quality Check | 4 Months |
Strainer Cleaning | 4 Months |
AC/DC Adapter Replacement | 5 Years |
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