Colleen from Austin, Tx writes
Can I spray down drain or do I spray directly to baseboards and behind sink?
PT 221L Residual Aerosol is going to be applied as a crack and crevice and spot treatment. We do not suggest applying down the drain or any sinks. You can treat the baseboards also. For additional information on treating springtails, please read some information locating on the following Springtail page.
Answer last updated on: 05/20/2018