Low incoming water pressure is the most common cause for slow output.
The system requires sufficient feed water pressure to operate correctly. Check and address these points in order:
- Verify the feed water adapter shut-off valve is fully open (handle vertical).
- Ensure the main cold water supply valve under the sink is fully open.
- Check for kinks in the red feed water supply line or the clear faucet output line.
If that didn't work, the problem may be at the drain.
- Inspect the black drain line. Ensure it is not kinked or pinched.
- Check the drain saddle installation. The hole in the saddle must align perfectly with the 1/4" hole you drilled in the drain pipe. Misalignment blocks drain water and damages the membrane, slowing production.
- DO NOT remove the flow control component inside the black drain tubing.
Operating parameter: Feed water temperature must be between 40–100°F (4-37°C). Very cold water can slow the membrane.