Made a 15 gallon conical from a conical norwesco tank from tank depot. Dumped some Trub after 10 days and only a liquidy yeast came out. I was assuming it would be packed and semi formed. It is a wheat beer so I don't know if that would matter. My valve is 1 1/4 and the tank is not a full drain, so these may be the problem but not sure. Any suggestions?