The AWP Sanitizer SE1

raises pH; and disinfects itself automatically during regeneration. The Sanitizer SE1 system has a unique media in the fact that it is a synthetic zeolite that can handle very high concentrations of chlorine.   

Whether it's a standard sediment or carbon filter, refrigerator replacement filter or reverse osmosis membrane the question

 It depends. The frequency of filter changes depends upon your water quality and your water usage. For example, if there are a lot of sediment particulates in your water, then you will have to change your filters more frequently than someone with little to no sediment. Similarly if you are a family with heavy water usage it will demand more frequent filter changes.  

Replacement schedules are generally as follows:

Carbon filters used for the whole house should typically be changed  every 3-6 months.

Similar to many other water filters, refrigerator filters should be changed about every 6 months.

The bottom-line - you should replace your water filters whenever you notice a decline in performance, whether it is a drop in flow rate and/or pressure, or an unusual taste in the water. You should also, replace you water filter after any boil water alert or advisory is lifted in your area.