I recenty purchased this unit to replace a Rainsoft RO system that I had taken out. The Rainsoft RO faucet requires only a supply line to use it. However, the RO2000 faucet has a supply line and two black auxilliary lines connecting to it as well. Tried setting up the new unit with the old Rainsoft faucet, just connecting the blue supply line and leaving the black 1/4" line unconnected, but still attatched to the RO unit. Later found water leaking fron the black 1/4" tubing that comes from the RO unit. My question is this, can I just plug the 1/4" tubing coming from the unit and continue to use the Rainsoft faucet or do I have to install the new faucet? New to the forum and any help is greatly appreciated.