triton t90si annoying drip?

My triton has developed an annoying drip from the shower head. It continues even after the shower has been turned completely off.
What could be causing this and how would I go about fixing the problem?
kevin, March 2006


done
Solenoid valve is gone. Solenoid valve is electical valve to switch water on/off.

Bhupesh Kumar Puri, March 2006
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