Uses for Bulkheads

[PharmrJohn]

So when I get my tank, it comes with two bulkhead holes. I figure I'll hook up a good DC external return pump and use it for UV. My question is, what are bulkheads typically used for? I tried to look it up but got nowhere fast. But at least now I know the Pros and Cons!!! TIA!

 

[Vinaka_vakalevu]

I would assume it was drilled with the purpose of those being your returns. Or are you saying there are two additional bulkheads installed irrelevant of drains and returns? Where are the additional bulkheads?

 

[Formulator]

So when I get my tank, it comes with two bulkhead holes. I figure I'll hook up a good DC external return pump and use it for UV. My question is, what are bulkheads typically used for? I tried to look it up but got nowhere fast. But at least now I know the Pros and Cons!!! TIA!

Not sure I’m following… are these holes in addition to the drain and return holes? Where are they located on the tank?

 

[PharmrJohn]

Not sure I’m following… are these holes in addition to the drain and return holes? Where are they located on the tank?

Yes they are. I'll have two holes for outgoing to the sump and one as a return. The bulkheads are separate from that. And I'll be able to place them wherever I want. I'm looking to see what I can do as a closed loop. Sorry. I didn't explain myself well.

 

[Formulator]

Yes they are. I'll have two holes for outgoing to the sump and one as a return. The bulkheads are separate from that. And I'll be able to place them wherever I want. I'm looking to see what I can do as a closed loop. Sorry. I didn't explain myself well.

Ohh cool! You could do a closed loop for flow and eliminate some ugly powerheads!

 

[KrisReef]

Yes they are. I'll have two holes for outgoing to the sump and one as a return. The bulkheads are separate from that. And I'll be able to place them wherever I want. I'm looking to see what I can do as a closed loop. Sorry. I didn't explain myself well.

Additional holes are also additional points for leaks. Holes in the bottom of the tank can be the source for a complete drainage of the tank.

People use bulkheads all the time in the overflow drain where they can’t drain the entire system because the drain weir limits the amount of water that can be removed.

A submersible pump from the sump to a UV with a return to either the DT or back to the sump can avoid drill holes in the bottom of the tank.

Just because they offer extra holes doesn’t mean that you should drill them, imo.

What will the DT look like, is it a peninsula tank or something that goes against a wall or in a wall? Does it have a sump, an overflow box in the back or in the corner?

A image or diagram of the set up location and access will help folks know what you have and what you might need/want to maximize efficiency.

 

[Jamie814]

So when I get my tank, it comes with two bulkhead holes.

Your kind of confusing everyone.

Is this tank new or used? What size tank is this?

How many total holes does it have drilled in it already?

Where are these holes located?

Does it have an overflow box already installed?

 

[DanyL]

If I understand correctly - you’re asking what a loop hole is used for?

It’s basically 2 holes at the bottom of the tank connected with a pump that pumps water from one hole to the other, creating flow in the process.

As mentioned by others - it’s quite a risky approach, but sometimes, especially with tanks that sit against the wall, it can provide a good flow while preserving a clean look.

 

[Formulator]

Your kind of confusing everyone.

Is this tank new or used? What size tank is this?

How many total holes does it have drilled in it already?

Where are these holes located?

Does it have an overflow box already installed?

I think he is having a custom tank built and he paid/is considering paying for 2 holes in addition to the drains/returns.