alias atmossensor d0
alias pipesensor d1
alias vent d2
alias liqsensor d3

start:
yield

l r0 atmossensor Temperature
bge r0 255 daytime

nighttime:

l r1 pipesensor Volume
l r0 pipesensor VolumeOfLiquid
div r0 r0 r1
slt r9 r0 0.003

l r1 liqsensor Volume
l r0 liqsensor VolumeOfLiquid
div r0 r0 r1
slt r0 r0 0.5
and r9 r9 r0

l r0 pipesensor Pressure
slt r0 r0 40000
and r9 r9 r0

s vent Mode 1
s vent On r9

j start

daytime:

s vent Mode 0
l r0 pipesensor Pressure
sgtz r9 r0
l r0 pipesensor VolumeOfLiquid
slez r0 r0
and r9 r9 r0

s vent On r9
s vent PressureExternal 1000

j start