The new EPIC System measures energy usage while monitoring coil performance to adjust a Pressure Independent (PI) Control Valve to optimize coil. The new EPIC System measures energy usage while monitoring coil performance to adjust a Pressure Independent (PI) Control Valve to optimize coil. It is the basis for the ingredient active [HOST] is known as a phosphodiesterase-type five (PDE5) inhibitor. Tadalista 20 mg also referred. Tadalista 20 mg also referred. SightCare is a powerful formula that supports healthy eyes the natural way. . It is specifically designed for both men and women who are. It is the basis for the ingredient active [HOST] is known as a phosphodiesterase-type five (PDE5) inhibitor.