I am wondering though if what he said about the possible noise from the straight pipe drain is true... Would it be better for the drain to have twists and turns? It would suck to get it all together and then find out I should have done it differently lol.
do you remember when you were at my house, do you remember hearing noise from my tank, outside of the skimmers hummmm? i have straight drains, they do make noise after coming from a power out and are adjusting themselves, basically getting the air out.
but after that it's good, if you want you could use flex hosing and put a little curve in yours or a 90. it all comes down to air and water mixture, plus you are not pushing too much flow through your system.
by the way, that guy (uncle) gets a lot of respect on that site, i still don't think everything that comes out of his mouth is right, but not to the point that i would argue with him.
as for me, i will only tell you thing from my own experience, not the webs, but keep in mind; what will work for me may not work for you.