 void oldsequence(){
   DateTime now = rtc.now();
   realstarttime = now.unixtime();
-  if (tank<23){
+  if (tank<20){
     fillup();
   }
   now = rtc.now();
   delay(2000);
-  aeration(240, 24);
-  delay(2000);
-  settle(60, 24);
+  aeration(240, 19);
+  delay(2000);
+  settle(60, 19);
   delay(2000);
   skim(60);
   delay(2000);
-  settle(120,24);
+  settle(120,19);
   delay(2000);
   decant(6);
   delay(2000);

  loading(18);
  loading(20);
  loading(21);
  loading(23);
  loading(25);
}

void loop() {

void normalsequence(){//10 hrs
  DateTime now = rtc.now();
  realstarttime = now.unixtime();
  fillplusair(21,1);
  now = rtc.now();
  delay(2000);
  thirtysecaeration(60, 19);
  delay(2000);
  aeration(60,19);
  delay(2000);
  settle(180, 19);
  delay(2000);
  decant(6);
  delay(2000);
