Improve drain valve behavior

GameData/RealismOverhaul/RO_Resources.cfg

@@ -5,12 +5,19 @@
 RESOURCE_DEFINITION
 {
   name = CharredAblator
+  displayName = Charred Ablator
+  abbreviation = ChrAb
   density = 0.000925
   hsp = 200
   flowMode = NO_FLOW
   transfer = NONE
   isTweakable = False
   unitCost = 0.0
+  RESOURCE_DRAIN_DEFINITION
+  {
+    isDrainable = false
+    showDrainFX = false
+  }
 }
 
 RESOURCE_DEFINITION
@@ -158,6 +165,11 @@ RESOURCE_DEFINITION
 	transfer = PUMP
 	isTweakable = True
 	isVisible = true
+	RESOURCE_DRAIN_DEFINITION
+  {
+    isDrainable = false
+    showDrainFX = false
+  }
 }
 
 // Create new Kerosenes, change old Kerosene to JP-4 or the like.
@@ -636,6 +648,14 @@ RESOURCE_DEFINITION
 }
 
 //Don't allow solid fuels to be drained
+@RESOURCE_DEFINITION[NGNC]:FOR[RealismOverhaul]
+{
+  RESOURCE_DRAIN_DEFINITION
+  {
+    isDrainable = false
+    showDrainFX = false
+  }
+}
 @RESOURCE_DEFINITION[HTPB]:FOR[RealismOverhaul]
 {
   RESOURCE_DRAIN_DEFINITION
@@ -745,4 +765,11 @@ RESOURCE_DEFINITION
 @RESOURCE_DEFINITION[_*]:LAST[RealismOverhaul]
 {
 	!amountUnit = DEL
+}
+@RESOURCE_DEFINITION[*]:LAST[RealismOverhaul]
+{
+	%RESOURCE_DRAIN_DEFINITION
+	{
+		%drainForceISP = 0.1
+	}
 }