diff --git a/autoplace.lua b/autoplace.lua
index 1a53bf3..54df02a 100644
--- a/autoplace.lua
+++ b/autoplace.lua
@@ -182,9 +182,19 @@ function pipes_scansurroundings(pos)
 -- ...extra devices specified via the function's parameters
 -- ...except that this part is not implemented yet
 --
---	if (string.find(nym.name, "aero:outlet") ~= nil) then
---		pxm, pxp, pym, and/or pyp = 1 depending on the needed rules	
+-- xxx = nxm, nxp, nym, nyp, nzm, or nzp depending on the direction to check
+-- yyy = pxm, pxp, pym, pyp, pzm, or pzp accordingly.
+--
+--	if string.find(xxx.name, "modname:nodename") ~= nil then
+--		yyy = 1
 --	end
+--
+-- for example:
+--
+--	if string.find(nym.name, "aero:outlet") ~= nil then
+--		pym = 1
+--	end
+--
 
 end
 
diff --git a/flowing_logic.lua b/flowing_logic.lua
index 6fa37e3..95162a3 100644
--- a/flowing_logic.lua
+++ b/flowing_logic.lua
@@ -42,8 +42,8 @@ local check4inflows = function(pos,node)
 			if newnode ~= nil then dbg(newnode) end
 		end
 	end
-	if newnode then dbg(newnode..' to replace '..node.name) end
 	if newnode then 
+		dbg(newnode..' to replace '..node.name) 
 		minetest.env:add_node(pos,{name=newnode}) 
 		minetest.env:get_meta(pos):set_string('source',minetest.pos_to_string(source))
 	end