1. Put the appropriate amount of this product (40 gms each time into the sink, 200 gms or more in the toilet and main pipe), pour into the pipe, and rush in with a large amount of water after five minutes. Hot water recommended for serious blocks to the pipe unobstructed
2. It can be operated repeatedly or waited for several hours without being dredged, and treated with leather tweezers (this product has a continuous effect on severe blockage, and wait patiently)