Use and Care Manual
13   deltafaucet.com   
Before you call.
Below, you’ll find some frequently asked questions and troubleshooting tips. 
For more information on any topic—or to find information on a problem you 
don’t see here—visit deltafaucet.com/customersupport where you can search 
for more detailed instructions. You can also find helpful “How-To” videos on 
deltafaucet.com/videogallery and YouTube.com/deltafaucet.
What should I do if my single-handle kitchen or lavatory faucet drips from the spout?
Your Delta
®
 faucet is designed for leak-free performance, and all of our faucets 
are performance-tested before they leave our manufacturing facilities. If you 
experience a drip from the spout, follow the Early Maintenance instructions  
on page 3 of this guide. If you continue to experience the problem, follow 
these steps:
For Single-Handle Faucets, First:
•  Remove the handle to determine what type of valve is inside.
•  Look for an orange handle limit stop or a square stem in a yellow-green color. 
If you have either of these, you have a DIAMOND
™
 Valve. If you don’t have an 
orange handle limit stop or a yellow-green, square stem, you most likely have  
a ball valve.
For DIAMOND Valve Models: 
•   Turn water off at the stops.
•   Unthread cap.
•   Use a wrench to tighten the bonnet nut. Be careful not to overtighten. 
•   Replace the handle. 
• Contact 1-800-345-DELTA (3358) or visit 
  deltafaucet.com/customersupport for assistance if you 
  continue to experience issues.
Valve
Cartridge
 Bonnet Nut
Cap
Stem
Handle with  
Set Screw










