Plumbing my new 125 gal

[doug67]

I'm pickin up a 125 tonight. I have a few questions.
1-The tank has two corner overflows and I'm wondering ,when running ,how far above the overflows should the water level be?
2-It has 4 holes for returns drilled in back along top.when plumbing these do I have to run a pump for each or will 1 do?If 1 pump will do it,can I run a line all the way across the back and just T into each return?
3-Will a 40 gal sump be enough?
I've always used HOB or canisters ,so this is all new to me.
So sorry if these questions sound silly.
I'll probably have more questions later

 

[doug67]

Thnx


CLOSED

 

[rallysman]

Just saw this......do you still need help?

 

[soggysandwich]

I'm pickin up a 125 tonight. I have a few questions.
1-The tank has two corner overflows and I'm wondering ,when running ,how far above the overflows should the water level be?
2-It has 4 holes for returns drilled in back along top.when plumbing these do I have to run a pump for each or will 1 do?If 1 pump will do it,can I run a line all the way across the back and just T into each return?
3-Will a 40 gal sump be enough?
I've always used HOB or canisters ,so this is all new to me.
So sorry if these questions sound silly.
I'll probably have more questions later

1- you dont really determine the water level, the overflows do that for you, hence the name overflow

2- one pump is good, and yes you can t it
3- thats good

 

[eh1421]

1- you dont really determine the water level, the overflows do that for you, hence the name overflow

2- one pump is good, and yes you can t it
3- thats good

1= he is 100% right

2- you can t it but i would run it in a loop so all returns flow the same pressure

3- yep

 

[doug67]

I have already gotton most of my answers from lfs.
Thread went a couple day's with no response.But TY guy's

What do you mean ,when you say "run it in a loop"eh1421?