Regeneration in a softener consists of four steps: backwash, brine draw (slow rinse), fast rinse and brine tank refill. Each regeneration consumes 120–160 g of salt per litre of resin. Automatic valves are time- or volume-controlled (water meter); in duplex systems, one tank is in service while the other regenerates.
Technical glossary· Ion exchange and softening
Regeneration
Short definitionThe process of restoring exhausted ion exchange resin to working order by rinsing it with brine.
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