cdawg2016

hello I'm looking into a new pc case I currently have the corsair 760t and I'm just not feeling it any more what I'm looking for in a case something that conceals my psu like a 2nd chamber a full side window something that has awesome cable management and something that lets my water cool with no clearance issues I found the corsair graphite 740 case but cant find it for sale any where also looking into the win 303 black case but any other suggestions would be awesome thanks for the help

my issue I bought the petg rigid tubing from primochill size is 3/8" id 1/2 od and I bought a bending kit from alphacool for my size tube the tube insert would not fit into the tube no matter what I did I heated,froze,stretched,sanded everything nothing worked so I ordered a tube insert from primochill same company as my tubes and the same issue it wouldn't fit I sanded it slightlyand I boiled,froze,stretched and nothing the white insert in the pics below is from alphacool and the black is primochill question what am I doing wrong? I seen people slide theirs in the tubes no issue what cant I do to get the insert to fit?