Use and Care Manual
What should I do if my single- or two-handle faucet leaks under the handle? 
•  Turn  water off at the stops.
•  Remove the handle. (For single-handle DIAMOND Valve models, also 
remove the cap.)
•  Use  an adjustable wrench or channel locks to tighten the bonnet nut (on 
two-handle models and single-handle DIAMOND Valve models), or use a 
strap wrench to tighten the cap (on other single-handle models). If you 
don’t have a strap wrench, put a towel over the cap to protect the finish 
and use channel locks.
•  Replace the handle.
If that does not solve the problem, you may need to replace the cam 
assembly for a single-handle faucet with a ball valve (see illustration  
on page 14), or the stem unit assembly for a two-handle faucet (see 
illustration below). For single- and two-handle DIAMOND Valve models,  
you may need to replace the DIAMOND Valve assembly (see illustration 
below). Visit deltafaucet.com/customersupport for detailed instructions.
 deltafaucet.com  16
Strap Wrench
Valve
Assembly
DIAMOND Valve 
Two-Handle Faucet
Non-DIAMOND Valve  
Two-Handle Faucet 
Stem Unit
Assembly










