240g 2x 1" drain, 2x 3/4" return

[PaulieReef]

So I am about to buy a used tank, it currently has 2x 1" drains and 2x 3/4" returns, with a pump that pulls 980g per hour. Is this enough?

I was planning on using the 1" drains with the 3/4 returns as emergency and just plumbing over the back into the tank for the returns.

Suggestions?

 

[Vinny Kreyling]

Yes, enough.
Take a look here:
https://hy-techroofdrains.com/water-flow-through-a-pipe/

 

[PaulieReef]

Yes, enough.
Take a look here:
https://hy-techroofdrains.com/water-flow-through-a-pipe/

amazing link!