the tank by removing the lid 22 as shown in fig1 the indicia 30 are integrally formed on the inside surface of the container 10 however the indicia 30 could be formed on the sidewall of the resin tank 12 if the tank 12 were located within the salt storage container 10 in such a position for the indicia 30 to be readily visible when the lid 22 is removed the indicia 30 could of course be provided on the sidewall of the salt tank 10 in other ways such as by providing a separately formed measurement strip similar to a ruler or yardstick having the indicia 30 formed thereon which strip being secured to the sidewall of the salt tank 10 while the indicia 30 may be provided in many different ways they should of course be provided in a form which is not attacked by the corrosive atmosphere resulting from the brine contained within the tank in the preferred embodiment of this invention the indicia 30 are spaced apart in a vertical direction such that the space between adjacent indicia 1 through 9 represents one tenth of the total salt capacity of the tank the water softener may include a remote unit 32 having a display panel 34 the status information of the.