The carbon does not remove the ammonia, it helps break the bond between the chlorine and ammonia so it is more easily removed by the membrane and DI.
http://www.wqa.org/pdf/TechBulletins/TB-Chloramine.pdf
Todays carbon block construction methods combine different types of carbons in one extruded block with extremely small 0.5 and 0.6 micron pore sizes so multiple carbons are not needed or necessary, 10 years ago this was different. Todays carbons break the bond between the chlorine and ammonia down into ammonia, chloride and nitrogen gas. The carbon does adsorb the chlorine portion, not the ammonia portion which is where the DI comes in and why good resin and good contact time are critical. As long as you are using a good quality, low micron carbon block you are covered and there is no need for granular products that degrade into dust and fines and plug downstream components causing the need for additional particulate filtration. When you place a granular product in front of a carbon block you fould its billions of tiny microscopic pores and it is counter productive. Adding another sediment filter after the carbon causes a pressure loss and reduces the membranbe efficiency. The answer is fewer, but better filters and a good full size vertical DI with bottom up flow. This is my opinion but based on a lot or personal experience and research over the last couple decades as well as interaction with others in my water treatment profession.
Excellent on getting the ANSI/NSF certification! Thats a big undertaking and not inexpensive. It shows you have a big commitmemt to the industry and plan to stick around unlike many of the ebay vendors who come and go with no brick and mortar storefront or phone number.
http://www.wqa.org/pdf/TechBulletins/TB-Chloramine.pdf
Todays carbon block construction methods combine different types of carbons in one extruded block with extremely small 0.5 and 0.6 micron pore sizes so multiple carbons are not needed or necessary, 10 years ago this was different. Todays carbons break the bond between the chlorine and ammonia down into ammonia, chloride and nitrogen gas. The carbon does adsorb the chlorine portion, not the ammonia portion which is where the DI comes in and why good resin and good contact time are critical. As long as you are using a good quality, low micron carbon block you are covered and there is no need for granular products that degrade into dust and fines and plug downstream components causing the need for additional particulate filtration. When you place a granular product in front of a carbon block you fould its billions of tiny microscopic pores and it is counter productive. Adding another sediment filter after the carbon causes a pressure loss and reduces the membranbe efficiency. The answer is fewer, but better filters and a good full size vertical DI with bottom up flow. This is my opinion but based on a lot or personal experience and research over the last couple decades as well as interaction with others in my water treatment profession.
Excellent on getting the ANSI/NSF certification! Thats a big undertaking and not inexpensive. It shows you have a big commitmemt to the industry and plan to stick around unlike many of the ebay vendors who come and go with no brick and mortar storefront or phone number.
