[SoCalRider]

I'm about 2-3 hours from starting this job.  I've bleed brakes but have never overhauled the system.  What happens when I start removing the old sheat?  Am I going to have an environmental disaster occure around my cycle?  Any tips on how to minimize this?

TIA

I'll check back here just before I begin, after I get cleaned up after I walk the doggies.