i cant for the life of me find the tread now, but essentially, you need a 5 gallon bucket w/sealing lid, with both a pvc sized fitting for the shop vac hose, and a fitting for some pvc tubing to insert into the cooling system. - also best to have a short length of tubing inside the bucket on the intake side to keep the fluid entering at the bottom of the bucket.
---see poor ms paint drawing---