Stop in for a cup of coffee

Tooljunkie said
I usually use a propane torch, get it hot and cool. At least 3 cycles. If you got the hose off ,even better. Put an awl in line to keep brake fluid from leaking out.

Note: if you are heating with hose still attatched, rubber will blow out of fitting,goes off like a gunshot. Wet rag may prevent it.

Thanks Frank.
Hose already blew off. Really still don't know why.
Whatever wanted to drain out had done so,
I think the front holdoff valve may have kept the resevoir from draining.

So yes I could have safely applied heat (other than the danger of lighting up the fluid that leaked.)