My GE Smartwater reverse Osmosis system will not work. When it wouldn't fill with water, I decreased the pressure to allow it to fill. After filling, I added the recommended pressure to the tank. When dispensing water from the faucet, the strong stream lasts only for a few seconds, then goes down to a drip. When this first began to happen, I replaced the system (it was 7 years old) with the same model. After installation, it does the same thing. I have played around with different pressure amounts, but nothing works.