Today on BRStv, we have another episode of BRS 52 FAQ where we answer all of your frequently asked reefing questions from our popular 52 Weeks of Reefing series. This week we are answering Kenneth C’s question, "Why doesn’t my 99% rejection RO/DI membrane achieve the listed 99% rejection??" Not all membranes are created equally, and recently DOW has introduced a 99% rejection membrane making it one of the best membranes for residential reverse osmosis water filtration. Just like membranes, not all water is created equally too. Depending on how you obtain your water, if it's through a city source or a well, the minerals and other possible contaminants can change how your membrane performs. Other variables like water pressure and temperature will directly affect the rejection rate of your membrane too. So follow along as we answer today's question, provide some helpful insight, and help make reefing just bit more fun and easy for you and your tank. *Legal Stuff* The purpose and content of this video is to provide general information regarding the products and their applications as presented in the video. Aquatic Sales Solutions, Inc. and its officers, directors, employees and agents disclaim all express or implied warranties, in any way, related to the products and their application as presented in this video, make no representation or warranty regarding the products and the application as presented in this video and shall not be liable for any direct or indirect losses or damages of any type, including but not limited to punitive damages, or from personal injury or death resulting from or in any manner related to the video, and the products in and contents of the video. The viewer expressly agrees that Aquatic Sales Solutions, Inc. and its officers, directors, employees and agents shall not be liable for any damages or losses related to the products in and content of the video and hereby agrees to hold the foregoing harmless from any such losses or damages.