I am having a rat problem , there inbetwen my floor boards , Don know were thry enter , my contractor couldn t nor an exterminator could tell?? cant trap them , i can only drill holes in the floor and drop poison , which dont seem to being working very good.i here them eating but its going on for 2 weeks.
I was told to use ZP in pellet form and drop that in the holes.

i read after the rats eat it , they will die soon , but can they give off the phosphine gas , after eating that can be trapped in my floor boards and make me sick?

i really need a for sure answer , i dont want to have to pull my living room ceiling down

thanks so much

jj