Extract residual if possible. Rotary scrubbing will clean
the carpet fibers the best by encapsulating dirt and detergent residue, which
powders off the carpet. Periodic extraction will flush out this dirt and other
organisms deep in the carpet. Never “coat” a dirty or spotty carpet.
After scrubbing or extracting a dirty carpet, if you are not satisfied with the
results, do not apply a coat of carpet protector as this will result in
“gluing in the dirt” making it harder to remove it the next time.
Either re-scrub or extract the carpet or leave the carpet until the next
cleaning cycle before you coat..