set terminal png
set output 'pooltemps.png'
set xdata time
set timefmt "%b %d %H:%M:%S %Y"
set title "Inlet (from pool), Outlet (to pool), Valve Status, Filter Pressure" 
set ylabel "Fahrenheit & PSI" 
set yrange [40:100]
set xrange [*:*]
set xlabel " "
set grid
set size 1.2 ,0.5
set key top left

#plot 'pooltemps.input' using 1:7 t "Panel" with lines, 'pooltemps.input' using 1:6 t "Outlet" with lines, 'pooltemps.input' using 1:5 title "Pool" with lines, 'pooltemps.input' using 1:9 title "Valve On", 'pooltemps.input' using 1:8 title "Attic" with lines

plot  'pooltemps.input' using 1:6 t "Outlet (to pool)" with lines , \
      'pooltemps.input' using 1:5 title "Inlet (from pool)" with lines, \
      'pooltemps.input' using 1:9 title "Valve On" , \
      'pooltemps.input' using 1:(($10 * 2) + 40) title "Filter Pressure (x2, 40F == 0 PSI, 50F = 5 PSI, 60F == 10 PSI)" with lines 

#plot  'pooltemps.input' using 1:6 t "Outlet (to pool)" with lines lc rgb "red", \
#      'pooltemps.input' using 1:5 title "Inlet (from pool)" with lines lc rgb "blue", \
#      'pooltemps.input' using 1:9 title "Valve On" lc rgb "purple", \
#      'pooltemps.input' using 1:(($10 * 2) + 40) title "Filter Pressure (x2, 40F == 0 PSI, 50F = 5 PSI, 60F == 10 PSI)" with lines lc rgb "green"