I have roaches coming up my drain.Its getting worse over the last month.Now there making babies.I bought borax.How do i use it?Will it get rid of them or do i need a pest control?Do they bite?I think they are water bugs
put the borax around the drain under the cabinet where there may be a space fr them to room. I have seen roaches come up in bathtub too. For gnats/flies they say pour bleach in drain…try it for the roaches. But don’t mix chemicals.