Will from Chesterfield writes
How often is this product used in the drain?
Yes, Vector Bio-5 Multi-Purpose Drain Cleaner is used full strength. The application instructions are below.
CLEAN-OUT: Apply 4-8 ounces per drain. Repeat as necessary. For faster results flush with 2-4 gallons of water.
MAINTENANCE: Apply 2-4 ounces per drain. Repeat as necessary. Recommended 1-2 applications per month.
Answer last updated on: 02/19/2018