Return pump question

[Reefguy13]

So I just got a waterbox 45.2 marine. First time having a sump on a tank. It came with a coral box dc return pump but I'm thinking it's not powerful enough. I have to close the main drain line almost all the way to prevent any syphone noise/gurgling. Is this because the pump is not powerful enough? It says rated for 1600gph. It's a 45 gallon tank including the sump

 

[DC Reefer]

do You have other powerheads for flow in the tank or just the return pump. Also what are you planning to have in the tank (coral and or fish).

 

[Reefguy13]

I just set it up today I will have other power heads probably a nero 3. I'll lightly stock it. Probably a couple clowns maybe 2 more smaller fish

 

[Dkmoo]

What's ur head pressure/pipe size? Depending on your specific plumbing the actual gph is usually a lot lower than the rated amount. For example, my bump is 500gph but actually pumps out 150gph inside the DT due to head pressure.

There are a few ways to reduce gurgle (just google it) but i wouldn't close out the main drain unless you have a back up train bc as time goes by if something gets clogged you can easily overflow.

Thanh from tidalgarden has a good on youtube for reducing noise.

 

[Reefguy13]

Awesome thanks I'll look into that thak you