We racked red wine this morning. Here's what we did.
The wine from Aguascalientes was in an 80 gallon Flextank in the bodega. We pumped out 50 gallons into a clean 50 gallon Flextank, added oak chips and metabisulphate, and left it in the bodega.
We brought the remaining 30 gallons to our little winery and pumped it into a clean 50 gallon Flextank. We added the 30 gallons of our local wine from the oak barrel making 60 gallons in a 50 gallon tank. Pretty clever, huh? Obviously the 80 gallon Flextank doesn't quite hold 80 gallons or the 50 gallon tank holds more than 50. We added oak chips and metabisulphate.