 }
 void pressures(){//read and average pressure values
   int junk = analogRead(feedppin);
-  feedp = analogRead(feedppin)*.21-16.5;
+  feedp = analogRead(feedppin)*.7-54;
   sfeedp = (sfeedp+feedp)/2;
 }

   Serial.begin(9600);
   attachInterrupt(0, dropcount_fun, RISING);  //pin 2 tr reciever
   pinMode(feedppin,INPUT);//pin A0
   drop_num = 5;
   dropcount = 0;
   dropcount2 = 0;
   strokerate = 118;
   lowflowtime = 0;

   totalvol = 0;
   
   //make sure this is correct!
   dropsize = 0.017;//how to find this
   //make sure this is correct!

   flowrate = 0;
