All water filters would have the strengths and weaknesses, pros and cons, and this Whirlpool water filtration system certainly divides opinion. You will need a … Then remove the post filter cartridge. This troubleshooting guide suggests solutions to every problem you may face. The only solution to this problem is changing your filter every six months and sticking to your schedule. If your storage tank pressure is less than 5-7 psi. A backward flow could damage the Reverse Osmosis Membrane. You can use an air pressure gauge to check the tank air pressure. 16. The different parts of RO work together to give clean water. Open reverse osmosis faucet and drain the tank until the flow slows to a drip. and promotions, //