A control valve usable as a bypassdiverter valve for controlling the flow of fluid from a source to a fluid treatment device or other water handling appliance, such as a water softener. The accessible user interface is accessible to an end-user without having to disassemble any portion of the device. Two metal plates are arranged on the base. Presented content may be actuable, to allow a caller to change the destination of a call, take advantage of an offer presented to him or her, redeem a coupon, schedule or queue a subsequent call, etc. The input device has a main cover mounted on the body, an additional electronic device retained inside the compartment, and a subsidiary cover pivotably coupled to the body and covering the compartment in a closed position. More particularly, the present invention relates to a method of reducing airway tissue mucus hypersecretion in a mammal by downregulating the functional level of activin or upregulating the functional level of follistatin.