Thursday, 5 April 2012
What is a 'Duplex' water softener?
The best way to describe this is to explain a simplex softener first - the 'simplex' describes a single vessel within the softener.
The picture to the right, shows a model with two vessels (the two dark blue canisters) ; this is known as a duplex model.
The simplex softeners were the first ones on the market; These need time to 'regenerate' the resin. Or, in lamens terms, to soak up all the sodium goodness into the small resin beads, before the softening process starts again. This limits the use of your softener, but only on occasion. There are many ways to get around that, one is to use a 'timer' softener (which we will link to another post shortly) and the other is to invest in a 'duplex'.
A duplex softener only uses one canister/vessel at a time, so one of them has a full chance to 'regenerate' before needing to be used - it's a feature that ensures soft water is being made 24/7, and is the choice most people make when deciding to buy a softener.
This is what happens when a softener regenerates...