Scupper drains again

[dcobbett]

I know the consensus of opinion on this and other boards/forums seems to be that the TH Marine ball scuppers are preferable to Rabud’s SeaScuppers for use over the ends of through the transom scupper pipes, but I noticed that the Rabud’s are available in a 3” dia. model. Anyone tried them or have an opinion on them?

Has anyone tried TH Marine’s Duck Bill Scupper (http://www.thmarine.com/product.cfm?PRID=189)
over the ends of through the transom scupper pipes?

Anyone using FELLOW-SHIPS VORTEX system on vertical scuppers/drains on a 20 SF? If so, any opinions on modifying TH Marine’s standard cockpit scupper drain to fit in the recess in the deck over the top of the drain tube (see http://www.thmarine.com/product.cfm?PRID=56 )?

How about a modification of this product http://www.thmarine.com/product.cfm?PRID=57 (the Flush Mount Scupper Assembly)? Seems like it would do the same thing as the glove or condom used in the VORTEX system.