If you think that the waterbug infestation is getting a little out of hand, an effective way on how to get rid of waterbugs is by using natural pesticides that will not be harmful to your health. Make a thorough scan of your home to look for the nests of the waterbugs, so you can start clearing them out.
White distilled vinegar can work wonders on clearing out waterbug infestations. You can use a few cups of this on all your drains, and places like the bathtub, sinks, and toilets. Powdered sugar with baking soda mixture can be put inside the cracks that serve as the waterbugs’ hiding places.
If none of the natural pesticides help, consider using boric acid (see Wikipedia: boric acid) or simply call the exterminator. This is the quickest way on how to get rid of waterbugs.