make yourself self a rat trap
thats not hard to do
things you will need they are only few

first you need  a bucket and bottle to
and a piece of dowel the bottle put it through
a bit wood to climb so the rats can reach the top

spread some peanut butter  on the bottle
that will be the bait   as the bottle spins
the rat will meet its fate

put water in the bucket just under half  will do
the bottle it will spin once the bait is found.
   the rat it will fall in  the rat it will be drowned

you can also by a top and a bucket to
ebay and amazon ready made for you