It is important to understand that Borid Boric Acid Dust is only going to work on those roaches that actually comes into contact with it. The majority of roaches live in cracks, crevices and wall voids and only come out when absolutely necessary. Borid Boric Acid Dust has nothing in it to actually attract the roaches so it must be strategically placed into the places where roaches live and it takes several days for the roaches to actually die after they ingest the dust during which time they can continue to breed. We recommend using a roach bait gel, an insect growth regulator and an insecticide spray for faster results. Please check out our Roach Control Kit # 2. This kit comes with all of the components to control roaches quickly.
Yes, some boric acid products, like CB Borid Boric Acid Dust, will kill adult fleas, but it will not kill their eggs. This particular formulation of boric acid is not labeled to broadcast over your carpet. This product is limited to be used in areas that are not readily assessable such as in wall voids.
If you have fleas inside your home it is very important to use a product with an IGR (insect growth regulator) in it, such as Ultracide. This product will be broadcast across your carpet and areas where the fleas are seen. You will need to vacuum daily for 14 days and do a follow up treatment. Depending on the severity of the problem, you may have to do subsequent treatments. Make sure to vacuum daily in between all treatments.
CB Borid Boric Acid Dust and other insecticide dusts pose no risk to the exterior of pipes. If you have concerns about excess dust, then you can wipe it up with a damp paper towel.
CB Borid Boric Acid Dust is not labeled to be applied as a broadcast to floors or carpets nor is it labeled for carpet beetles. It is only for cracks and crevices around the rooms. Apply only in areas inaccessible to children and pets. Any flooring surfaces that it was applied to would be recommended to vacuum and sweep/mop to remove the product. We have a guide here that recommends products for eliminating them.