diff --git a/pages/11.ro-system/docs.md b/pages/11.ro-system/docs.md
index 0ecfc9a..32a7162 100644
--- a/pages/11.ro-system/docs.md
+++ b/pages/11.ro-system/docs.md
@@ -43,4 +43,11 @@ Pressure should be around 60 psi (The Ice machine requires 20-80 psi Manitowoc a
 
 300GPD will give 40 Ltrs / hr and is also a good idea for upgrade to the basement RO. Only the Pump and RO needs to be upgraded
 
-**Clean and sanitize Ice Machine every 4 months**
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+**Clean and sanitize Ice Machine every 4 months**
+
+### Electrical Connections
+
+1. Mains into the SMPS
+2. Pump and Solenoid together into the SMPS out
+3. Low Pressure (LP) switch between the SMPS out Live (Red) and the Pump/solenoid to cut out pump in case of no input water
+4. High Pressure (HP) switch between the LP coutout and the Pump/solenoid to stop the pump once the output tank is pressurized
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