How Do Water Softeners Work?

[@fazilkhan6819]

What is the salt calculating for 1 litre of resin

[@fazilkhan6819]

What will be the out put for 1ltr resin and 500ppm of hardness as cac03

[@uswatersystems]

I am not sure exactlly what you are asking. If the hardness is expressed as 500 ppm of CaCO₃ in 1 liter of resin, it directly means that there is 500 mg of CaCO₃ equivalent hardness in that 1 liter of resin. The output or total amount of hardness in terms of CaCO₃ would be 500 mg of hardness for 1 liter of resin.