Lady Lux kitchen faucets, like other faucets contain a screen, that over a period of time will fill with mineral deposits and debris that will clog the screen and restrict water flow. To gain access to and clean the Lady Lux faucet screen, perform steps 1 through 5 following:

1. Extend the spray head and metal hose from the faucet body and manually unfasten the spray head from the metal hose. Temporarily secure the metal hose in place to  prevent it from slipping back into the faucet body.
2. With the spray head facing up, place the hex head cutout of the plastic knob installation tool supplied with the faucet, over the rubberized molded hex nut of the spray head and unfasten the spray face from the spray head. If the installation tool is not available, use a suitable open end or crescent wrench to unfasten the molded rubberized spray face hex nut. Exercise care not to gouge the the rubberized molded hex nut.
3. Remove the screen and o-ring and clean with a mixture of white vinegar and water.
4. Once cleaning is completed, install the screen and o-ring in place and tighten the molded rubberized hex nut to fasten the the spray face to the spray head. Use care not to gouge the rubberized hex nut.
5. Tighten the assembled spray head to the metal hose and turn faucet on to verify proper water flow.