TROUBLESHOOTING YOUR REVERSE OSMOSIS SYSTEM
PROBLEM: MY SYSTEM DOES NOT PRODUCE MUCH WATER ANYMORE.
ANSWER: If you have no idea what the problem is, keep in mind that your R.O system consists of several components. If you start from the beginning and make sure each component is working properly, you can pinpoint the problem.
Let's start with where the water comes from the cold water line. Turn off the water going to your R.O. system and close the valve on the tank. Then disconnect the tube where it connects to the first filter housing. Then slowly turn on the water and shoot it into a bucket. If it does not shoot forcefully, then you may have a blockage in your needle valve (or other cold water connection).
Then turn off the water again and disconnect the tube where it connects to the membrane housing. Slowly turn on the water and shoot it into a bucket. If it does not shoot forcefully, then your pre-filter(s) may be clogged. You can remove the carbon filter from its housing and run the water again to see if the sediment filter is clogged. If not, you can remove the sediment filter from its housing and run the water again to see if the carbon filter is clogged. If one of the filters is clogged, you will need to replace it. (Please note that if you are on chlorinated water, you need to periodically change your carbon filter because its purpose is to remove chlorine which can damage a TFC membrane.)
If the water is flowing forcefully past your pre-filters, then disconnect the tube going to your post-filter (if you have one) or to your faucet. The water should be trickling out at a slow but steady stream. If there is no water coming out, then your membrane is probably clogged and you need a new membrane.
PROBLEM: I DON'T GET MUCH WATER FROM MY TANK ANYMORE.
ANSWER: Tanks come in a variety of sizes. The standard tank that we ship out with our systems weighs about 9 pounds when empty. If your tank has the same dimensions, its "empty weight" should be about 9 pounds. To see if your tank weighs 9 pounds when empty, make sure the valve on top of the tank is open. Then open your faucet and empty your tank completely. Then put it on a scale. If your tank weighs significantly more than 9 pounds, the bladder inside the tank probably has a leak in it, and the water inside the tank may be contaminated. Close the valve on top of the tank, and purchase a new tank. In the meantime, you can still use your system by placing a glass or jug in the sink, opening your faucet, and allowing your system to slowly fill it up.
Another possibility is that your tank has lost its air pressure. The side of the tank has a air nozzle (like on a tire). If you put an air pressure gauge onto it, it should register 5-7 psi. If it is less, just pump a little air into it.