Purple Martin Forum

I have learned a lot lurking on here so I thought I would show how I vent my Troyer horizontal gourds. I use a 4" schedule 80 nipple cut in half glued into 45 fitting than a plug till the weather warms up, all fittings are 3/4. I think u get a little better flow than with the 90 street-L fittin...

Awesome video thanks for all u do for the martins.