Need advice on Return Pump / Return Pump Plumbing.

[HiddenUser]

First let me post a couple pictures of my sump area / purposed plumbing design. Sorry I don't have a fancy CAD drawing (I wish I knew how to use CAD), but I did my best with MS Paint!

My tank will be running the length of the concrete wall (in a room above my sump room). My tank in the room above and the sump in the basement are perpendicular to each other (if they were on the same level).

When I designed my sump I had not planned to have it in the basement, rather it was going to be inside of the stand under the tank. So...here's my concern...The return chamber is located on the right side of the sump (per the first picture). I'm trying to figure out a way to minimize head loss so I'm wondering if I drill and add a bulkhead behind the return chamber, then run a PVC pipe the length of the sump back towards the concrete wall, then have the return pumping basically straight upwards to the tank, would there be any issues here with potentially starving the return?

Otherwise I'm going to have to find a large external pump that can handle a large amount of head loss due to plumbing 5 feet vertically to the ceiling trusses, 90* elbow, ~5 feet horizontal (back towards the concrete foundation wall), 90* elbow, horizontal towards the center of the concrete wall, 90* elbow, then another ~5-6 feet vertically.

I'm trying to avoid rotating the sump around as then my drain bulkheads are right in front versus the back, but worse case I'll have to do that...

My tank will be~270 gallons, minus displaced water from sand and rock and I'm looking to get about 5-10X turnover.

 

[zesty]

I follow what you mean and don't need any fancy 3d cad! phhft!

I follow what you are trying to do and I think you're good. You probably want to make sure your pvc running behind your sump is at (least) 1° angled towards your pump. I'm just thinking about a system shutdown and starting it back up. You don't want a dry pump...

What do you plan on for a drain? If you oversize your drain, you should not have an issue with starving your pump.

 

[HiddenUser]

I follow what you mean and don't need any fancy 3d cad! phhft!

I follow what you are trying to do and I think you're good. You probably want to make sure your pvc running behind your sump is at (least) 1° angled towards your pump. I'm just thinking about a system shutdown and starting it back up. You don't want a dry pump...

What do you plan on for a drain? If you oversize your drain, you should not have an issue with starving your pump.

Just doing more research and I've read that you shouldn't have the length of the inlet be 5-10x the size of the piping...so for a 1" diameter inlet, you shouldn't exceed an 5-10" inlet length. Not sure if having a bulkhead in the back of the sump, then having an ~48" inlet is ideal for any pump. I don't have any real world experience with this, this is just what I've read.

I'll be using a Ghost Overflow so the main drain is 1.5" and the 2 returns are 3/4".

Preferably I'd like to run 2 pumps for redundancy, but I'm trying to avoid pumps that consume 3-400 watts (x2). I'm pretty interested in some of the DC pumps that are available, but I'm a bit nervous to pull the trigger on a $300+ pump only to have it not work out for me.