diff --git a/filtration.ic10 b/filtration.ic10
new file mode 100644
index 0000000..3eae245
--- /dev/null
+++ b/filtration.ic10
@@ -0,0 +1,62 @@
+alias mud_sensor d0
+alias tank d1
+alias purge_button d2
+alias purge_pump d3
+alias filter_unit d4
+alias filter_display d5
+
+alias mud_temp r0
+alias mud_press r1
+alias filter1 r2
+alias filter2 r3
+alias tank_press r4
+alias button r5
+alias temp_run r6
+alias press_run r7
+alias filter_run r8
+alias purge_run r9
+
+define max_press 58000 # 58MPa?
+define max_temp 313 # 40C
+
+s purge_pump Setting 100 # Max throughput
+s filter_display Color 4 # Red
+
+start:
+yield
+s purge_pump On 0
+ls filter1 filter_unit 0 Quantity
+ls filter2 filter_unit 1 Quantity
+beqz filter1 swap_filter_1
+beqz filter2 swap_filter_2
+s filter_display On 0
+l purge_run purge_button  Setting
+bgtz purge_run purge
+j filter
+
+swap_filter_1:
+s filter_display Setting 1
+s filter_display On 1
+j filter
+
+swap_filter_2:
+s filter_display Setting 2
+s filter_display On 1
+j filter
+
+filter:
+l mud_temp mud_sensor Temperature
+l tank_press tank Pressure
+slt temp_run mud_temp max_temp
+slt press_run tank_press max_press
+and filter_run temp_run press_run
+s filter_unit On filter_run 
+j start
+
+purge:
+yield
+s filter_unit On 0
+l tank_press tank Pressure
+s purge_pump On 1
+bgtz tank_press purge
+j start
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