water pipes base + pda support

code/game/objects/devices/PDA/PDA.dm

@@ -775,6 +775,15 @@
 						user << "\blue \t [re]"
 				else
 					user << "\blue No active chemical agents found in [A]."
+			else if(istype(A,/obj/machinery/water/pipe))
+				var/datum/water/pipeline/P = A:parent
+				if(P.reagents.reagent_list.len > 0)
+					var/reagents_length = P.reagents.reagent_list.len
+					user << "\blue [reagents_length] chemical agent[reagents_length > 1 ? "s" : ""] found at [P.return_pressure()]kPa."
+					for (var/re in P.reagents.reagent_list)
+						user << "\blue \t [re]"
+				else
+					user << "\blue No active chemical agents found in [A]."
 			else
 				user << "\blue No significant chemical agents found in [A]."
 

code/game/objects/devices/PDA/cart.dm

@@ -34,6 +34,7 @@
 		name = "Power-ON Cartridge"
 		icon_state = "cart-e"
 		access_engine = 1
+		access_reagent_scanner = 1
 
 	medical
 		name = "Med-U Cartridge"