Seems like common sense now, but VaughnH's observation of of the T inlets is actually pretty significant. Given the restriction of flow all those 90* turns add up quick ! The bye pass is text book, but I don't think that book covers power heads, and mag drive pumps ?

I did recently discover that Mazzei already offers a selection of precision machined stainless steel drop in ports for gas injection venturis. This is good !

Of course I also discovered that the 2100, and 2700 needle wheels are on back order, and the smaller Ocean Runner Pumps are hard to come by. This is Bad !

Then I discovered that the needle wheel pumps for the Super Skimmers can't supply an adeqaute line pressure for remote placement. This is VERY Bad since Coralife appears to be the only source of needle wheel pumps that has even the slightest chance of hitting their @$$ with two hands and a catchers mitt !!!

Difficult to spec a product that can't be supplied ??? The Ocean Runner pumps are good, but if any one knows of any way short of dynamite to motivate their salesmen, Please by all means do fill me in on it ???

The Kent Venturis arent bad. They're not quite as nice as the Mazzei, but they're a good value, and Kent's VERY Reliable. I'm finding out that Reliable counts for alot more than any feature at this point.