Return line / First Sump

dougsfishandreptiles

New Member
View Badges
Joined
Jul 15, 2025
Messages
13
Reaction score
8
Location
Lincoln
What state or country do you live in
Nebraska
Rating - 0%
0   0   0
I attached some photos to try to make my question more clear. Are both of these pipes and holes just for draining? There are no other holes drilled in the tank so was the previous owner most likely doing a HOB return line?
IMG_5010.jpeg
IMG_5011.jpeg
IMG_5012.jpeg
 
You want the top of the hook like an inch under the overflow wall. I’ll take a picture as soon as I get my daughter to sleep…. She battling me tonight
 
How big is the tank?
 
Red is drain and yellow is return
IMG_9416.jpeg
 
1752630355659.jpeg

If you want to be extra cautious, add a strainer/guard to the underwater drain, to keep a giant-snail-critter (or your favorite Wrasse or Shrimp) from getting in there.
 

TOP 10 Trending Threads

WHAT IS THE LOUDEST PART OF YOUR REEF SYSTEM?

  • Return pump

    Votes: 7 4.6%
  • Powerheads or wavemakers

    Votes: 11 7.2%
  • Protein skimmer

    Votes: 27 17.6%
  • Overflow or drain

    Votes: 52 34.0%
  • Sump vibration or plumbing

    Votes: 2 1.3%
  • Cooling fans

    Votes: 11 7.2%
  • Dosing, ATO, or other equipment

    Votes: 10 6.5%
  • Nothing. My reef is surprisingly quiet

    Votes: 23 15.0%
  • Other (Tell us what makes the noise)

    Votes: 10 6.5%
Back
Top
Home
Post thread…
Market
What's new