Yes, salt chlorine generators do cost a good bit of money. The average system is anywhere between $800-$2000 installed, but look at it this way: Swimming pool owners that use salt, in many cases, will spend less than $100 a year on chemicals.Yep, $100.It Costs Too Much'. Yes, salt chlorine generators do cost a good bit of money. The average system is anywhere between $800-$2000 installed, but look at it this way: Swimming pool owners that use salt, in many cases, will spend less than $100 a year on chemicals. Yep, $100.