Instruments at a hydropower facility include head and tailwater gauges and other raw water contact devices. These instruments are small, sensitive devices that can easily become macrofouled by zebra mussels, causing significant plant operational problems. Control strategies include hot water injections and chlorine injections on the instrument. In addition, application of heat tape to exposed pipes, replacement of contact instruments with noncontact instruments, and coating with antifouling compounds are other options.
Preventive Control Methods
Reactive Control Methods