normally 1 Scavenging station will get about 3 item per day
 1 day just get only 3 !? NO no no no it's look like this work it's too easy for them
it has to work more 10 time !! or more than that as you please .

this mod will change Scavenging station has more efficiency about 10 time (or max in option is 100 time) for your settlement

this will rename "Scavenging station" to "Scavenging station +" to confirm mod is in the game
Beware my NMM didn't replace it self just select one " + , +x2 , +x5 or +x10 "

suggest to use with Uncapped Settlement Surplus by IDontEvenKnow
http://www.nexusmods.com/fallout4/mods/12430/?

combine with Uncapped Settlement Surplus so far you may no need to care about picking up junk any more ! Let settler do that for you !

ps. if you want to test
- use command " set timescale to 2000 " i suggest only 2000 more than that will may not get any item.
- default timescale is 20.
- sleep and wait may not get any item. (may be game mechanic not bug)
- still has a chance not found something in each of the sampling is 25%. as vanilla (that explain why not get 30 item per day)