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Peak flow rate: Maximum design process flow for intermittent high demand
through POE filter or softener.
POE: Point of Entry. A system installed where water enters the home.
psi: Pounds per square inch.
Regeneration: e process of restoring exchange capacity to a softener.
Resin: For POE softeners, strong acid cation exchange beads operating in the
sodium or potassium form.
Sanitize: e periodic addition of a sanitizing agent such as chlorine to attempt
microbiological control.
Service flow: Process water flow rate through a POE system, often measured at
the point of 15 psi lost.
Simplex: Softener or filter using one media tank.
Upflow: Direction of water flow against gravity through resin or filtration media.
By-pass Valve
Softening System Diagram
Regeneration Cycle
Indicator
Control Valve
Brine Tank
Resin Tanks