My first time with a conical fermenter. Decided to capture the yeast to re pitch. This is a 7 gallon conical. I opened the valve and ran in a pitcher about a pint and a half of trub, to be thrown out. I then collected in a mason jar the rest of what still looked like trub to me then beer. I was worried I might be pitching good yeast. The mason jar is 64 ounces and I'd say it's about 2/3 full. I shook it up and left it on the counter for at least an hour and a half, and maybe it had an inch of separation on it. I the put it in the refrigerator and it's been there for about 30 hours. There's only about 4 ounces of separation now. What should I do? I'm thinking of adding some sterile water and washing it.