In this page you will find:

 Setup Instructions:

For instructions on setting up your AF-40K, click HERE

Recharge Information:

Your system will recharge/regenerate automatically based on your water usage and settings.  The recharge will take place at 12:00am after the capaicty of the resin (as estimated by the electronic controller) has been reached.   

Checking the Salt Level and Refilling

Make sure at least 1/3 of the salt tank is full of salt at all times.  Without proper salt levels, the softener may not operate properly.  The salt tank can be filled to just below the cap of the Brine Tube Assembly.

Types of Salt

Sodium Chloride Pellets may be used in the softener.  If your water is high in Iron we suggest using an iron cleaner such as Softener Mate or salt with an iron cleaning additive.

Potassium Chloride may be used, however, if your raw water has a high iron content, sodium chloride with an iron cleaning additive may be more effective.  You should also increase the hardness value programmed into your controller by 30% above your water hardness to compensate for using potasium.

Disinfecting the Softener.

From time to time, depending on water conditions, you may need to disinfect your water softener.  

These materials are satisfactory for use with polystyrene
resins, synthetic gel zeolite, greensand and bentonites.

5.25% Sodium Hypochlorite
These solutions are available under trade names such as  Clorox*. If stronger solutions are used, such as those sold for commercial laundries, adjust the dosage accordingly.

  1. Dosage: Polystyrene resin -  1.2 fluid ounce per cubic foot of resin (35.5 ml per 0.03 cubic meter).
  2. Backwash the softener and add the required amount of hypochlorite solution to the well of the salt tank. The salt tank should have water in it to permit the solution to be carried into the softener.
  3. Proceed with the normal recharge

*Clorox is a trademark of the Clorox Company.

Calcium Hypochlorite
Calcium hypochlorite, 70% available chlorine, is available in several forms including tablets and granules. These solid materials may be used directly without dissolving before use.

  1. Dosage: 129.5 mg (approximately 0.1 ounce per cubic foot of resin (3 ml per 0.03 cubic meter). 
  2. Backwash the softener and add the required amount of hypochlorite to the well of the salt tank. The salt tank should have water in it to permit the chlorine solution to be carried into the softener. 
  3. Proceed with the normal recharge.


1. Fill salt cabinet when water level is above salt level. DO NOT MIX DIFFERENT TYPES OF SALT. If iron is present in your water, use a salt with an iron-cleaning additive to help keep the resin clean. You may also use a resin cleaner on a monthly basis in place of salt with cleaning additives. If iron is not present in your water, a clean pellet type salt is recommended. The use of rock salt is not recommended because it contains impurities that may clog the injector assembly.

2. You may use a salt substitute (such as potassium chloride) in place of water conditioner salt. If you start with water conditioner salt, you can switch to a salt substitute at any time - or vice versa. If potassium chloride is used in place of nugget or pellet salt, you must select the potassium option during the programming of the controller. We do not recommend using Potassium Chloride if there is iron in your water.

3. Should your electricity be turned off for any reason you must reset time of day.

4. Protect your appliance from freezing, including the drain line.

5. By-pass the appliance when servicing the well, plumbing, or pump. When work is completed, turn on the nearest cold water tap until water runs clear before putting appliance back in service.