Total Dynamic Head
 

Not sure exactly how much flow I am going to recieve outta this and wondering if someone could "decrypt" what this means please:D

If I use 3/4" id pvc, string it out approx. 3 ft up and into my tank, with a 100 gph pump, will that be enough to run my sump?
The return line is 62" and is going to be one similar to this.....
http://www.monsterfishkeepers.com/fo...ad.php?t=15733

Thanks

How big is your tank? 100GPH minus your head loss doesn't seem like very much flow. Try out this calculator.

http://www.reefcentral.com/calc/hlc2.php

tank is 55g....

Here's the idea, what type of pump would I need? I don't plan on using any brand name pump....I just want to use a cheap ol' fountain pump or if I have to a pond pump. Pond pump I am looking at does 200-300 gph I think.....
I want to make this project as cheaply as possible:X
Head loss calculator says I need a Rio 600 = 67 GPH

guess it won't let me upload the schematic of the sump.....

FW right? You want to turn over you tank's total volume 5 times an hour so plan for more like 200 - 300 GPH after head loss is accounted for. This would take a pump rated for about 600 GPH, a RIO 1700+ should do it.

is your pump okay for SW?

it's a SW Reef and fish

Picked up a 515 gph pump, says it will spray 11' with minimal head loss, I guess we'll see...

11' with "minimal" head loss? Either whoever designed this pump should get a Nobel Prize or they're using a rather flexible definition of "minimal".