Hard water is very common in many areas of the world. Hard water causes scale to form in pipes plumbing fixtures and kitchen appliances. Soap reacts with hard water to form a curd and hard water can also cause skin flaking and irritation. More soap or detergent is needed when washing or laundering with hard water.
Hardness is primarily caused by the dissolved chemical compounds of calcium and magnesium. The amount of hardness is expressed in milligrams per liter (mg/L or grain per gallon (gpg as calcium carbonate.
If your softener is not working properly you may just need to change the resin and save a lot of money.
Mixed Bed ion exchange resin is used for the production of pure water. By combining special ratios of cation and anion resin we are able to purify water to very pure levels. Mixed Bed resins are used for producing water that is free of dissolved mineral and is used for many applications including steam production laboratory and pharmaceutical grade water spot free car wash and many other applications requiring pure water.
We carry to complete line of Purolite High Quality Ion Exchange Resins. As a numbr one brand of resin you can expect exacting quality backup up by superb technical service. In this section you will find all type of Purolite brand ion exchange resins.
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Cation exchange resin is also known as cation deionization resin or water softener resin depending on how it is chemically charged.
Cation (Cat-Ion resin in the sodium (Na- form is used to soften water by trading calcium (ca and magnesium (mg for sodium (na . Cation resin in the hydrogen (H form the resin is used to trade all positively charged ions in water for hydrogen. (when used with Anion Resin (OH it makes pure water. H_OH = Pure H20.
Tannin resin is often mixed with softening resin which reduces the amount of space required by the equipment and reduces the cost of the system. This type of design has performed satisfactorily in many areas. However during the regeneration the salt will displace calcium from the cation resin and potentially alkalinity from the anion/tannin resin which can promote calcium carbonate precipitation. It can be seen as a white precipitate in the resin bed and a coating on the drain line. Pressure drop through the system or a milky-white substance in the backwash water are indicators of precipitation.
It is best practice to run Tannin resins in a separate water softener that follows a traditional water softener.
Anion exchange resin is also known as anion deionization resin or dealkalizer resin depending on how it is chemically charged.
Anion resin in the chloride (Cl- form is used to dealkalize water by trading carbonate for chloride. Anion resin in the hydroxyl (OH form the resin is used to trade all negatively charged ions in water for hydroxyl. (when used with cation H_OH = Pure H20.