Return plumbing question

[RemainVayne]

Area = Pi x (Radius)^2

So yes, flow increases at some exponential rate of the pipe diameter. The limiting factor is the smallest diameter pipe in the circuit... which is his 1" returns. But running a bigger pipe up to the returns will reduce the internal friction of the pipe up to the return.

So how hard should I try to work around utilizing 90* elbows and Ts? I'm trying to map this out in my head but don't see an easy way to maximize flow through the least amount of bends.

 

[Oughtsix]

I would not sweat a few elbows or Tees. They will offer full flow capability as far as water capacity but they will add a bit of extra resistance. The faster your water flows (the smaller the pipe used) the more resistance fittings will introduce.

But from a practical standpoint use as many as you need to plumb your sump properly just don't throw any extra bends in for the fun of it.

I think you are over worrying about return flow (I always try to over analyze it too!). In the end when the pump gets turned on it doesn't really seem like I have made any appreciable difference in flow for all my extra engineering. As complex as we all seem to try to make it in the end it is just water flowing through a pipe!

 

[Tarsun]

Good point. Make it fully functional and neat and you'll be happy with the results, I'm sure.

 

[DN328]

So how hard should I try to work around utilizing 90* elbows and Ts? I'm trying to map this out in my head but don't see an easy way to maximize flow through the least amount of bends.

Based on the testing that Bulk Reef Supply shared, using a 90* has negligible impact, if any from 45*. As mentioned above, I think you'll be fine just using 90* and T's.