if(list,dc == 0)
What's that?
Please use code tags when posting code.
int list,dc = 0; // Drops Count, Nmber of drops to produce.
byte ds = 0; // Drops Size, in Milliseconds,Time Solenoid Valve stays open.
byte di12 = 0; // Drops Interval, in Millisecons, Time Between Drops 1 & 2 That Solenoids Shuts off.
byte di23 = 0; // Drops Interval, in Millisecons, Time Between Drops 1 & 2 That Solenoids Shuts off.
int svpd = 0; // Solenoid Valve Purge Delay.
byte svpdo = 2; // Digital Out Pin For Solenoid Valve Purge.
byte dgo = 3; // Digital Out Pin For Go Drop Launch.
byte sd = 0; // Sensor's Delay Value.
byte st = 0; // Sensor's Threshold Value
int bmd = 0; // Bulb Delay, When Button Pressed To Confirm, Shutter will Trigger In Bulb Mode For That Set delay.
byte bmo = 4; // Digital Out Pin For Bulb Mode.
byte sdo = 5; // Digital Out Pin For Shutter.
Mixing (constant) pin numbers in with variables is a really bad idea.