Is there a way to strain slightly used transmission fluid?

[78elk]

I bought my transmission that came out of a Cadillac that had 55,000 miles. It had been sitting awhile. When I installed it, I put new fluid and filter in it. I filled it with new Royal Purple transmission fluid. I ran it around 200 miles. The gasket was leaking so I replaced the filter, gasket, and fluid. I kept the fluid I drained out. Is there a way to strain this fluid, I drained out, to use it?

 

[shoedoos]

if it doesn't have lumps, chunks, shiny metal, or anything else that might contaminate, then feed it back in through a funnel......if you're paranoid get yourself a paint strainer or something like that and pour through that.....make sure the engine is running for most of the pour or it will appear you have overfilled on the dipstick....

 

[78elk]

Thank you. What was in the bottom was black sludge. I didn't see any metal pieces st all.