2. Some companies offer a variety of devices to soften your water that do not use salt, or anything else to regenerate their product. Buyers beware! If a cost effective and reliable technology had been developed that could replace a resin based water conditioner, then everyone would be selling it.
1. Many dealers will advertise a no salt water conditioner. Any brand of water conditioner can be operated without using salt. This is done by using a salt substitute, potassium chloride. It generally more expensive compared to regular salt (sodium chloride), and can be difficult to find in some areas. Also, it is generally recommended you increase the salt setting on your control valve by about 10%, when using a salt substitute.