Spinner
You never cease to amaze me. I was talking to THE MASTER when he was in the R&D stage of this gadget. I asked him if he could make the intake smaller and the transition to the larger outlet less abrupt. Low and behold, there it is two weeks later!!!
Now all you need to do is heat up some sand in the oven to about 350. Stick the last half of the larger PVC fitting into it, let it get good and flexible, then smuch it down onto something round and a little bit larger in diam. Makeing the out flow tube kinda the shape of a bell. Wider flow pattern!!!
As always I like your bi-color approach.