Overflow Box Sump 75g setup

[Jallen42]

Hi, I am wanting to look at setting up an overflow box for a sump on the 75g tank I have. It can not be drilled or I would rather do that.

I am likely going to get a PF800 unless I am swayed otherwise. I know that I have read that people recommend taking off the pre filter and not putting a valve to restrict flow on the overflow (just a straight shot from overflow to sump). They also recommend building a stockman sand pipe for in the place of the pre filter.

I have read that for a constant siphon and trying to prevent flooding I would need a similar gph going back in the tank as it is being taken out. Does anyone recommend good pumps to pair with the PF800 for a 75g?

I guess I am asking for what products I should look into and how to best prevent my floors from being ruined .


Im not experienced in reef tanks or sumps, but want to try one.

 

[glb]

Hi, I am wanting to look at setting up an overflow box for a sump on the 75g tank I have. It can not be drilled or I would rather do that.

I am likely going to get a PF800 unless I am swayed otherwise. I know that I have read that people recommend taking off the pre filter and not putting a valve to restrict flow on the overflow (just a straight shot from overflow to sump). They also recommend building a stockman sand pipe for in the place of the pre filter.

I have read that for a constant siphon and trying to prevent flooding I would need a similar gph going back in the tank as it is being taken out. Does anyone recommend good pumps to pair with the PF800 for a 75g?

I guess I am asking for what products I should look into and how to best prevent my floors from being ruined .


Im not experienced in reef tanks or sumps, but want to try one.

So you want the overflow on the display tank but don’t want to drill it? Fwiw, I love that my tank is drilled because the equipment is less visible.

 

[WVNed]

Get an overflow with 2 drain connections like a PF1200.
Use one with a single drain only on small tanks of 30 gallons or smaller.
I used a PF1200 for a while and then drilled my 75 for an internal overflow.

 

[reverc]

Any pump that will put that put out 600-800 gph. I have that same HOB overflow and I'm running a 650gph return pump and have no issues at all. If you get a DC controllable pump you should have no issue at all keeping water where it's supposed to be.

 

[Jallen42]

So you want the overflow on the display tank but don’t want to drill it? Fwiw, I love that my tank is drilled because the equipment is less visible.

I believe my tank is not made of glass that can be drilled. I don’t mind the equipment being seen I just read that most people use sumps, canisters have to be cleaned very often, and I highly doubt one of my sponge filters will do the job I need it to.

 

[Jallen42]

Get an overflow with 2 drain connections like a PF1200.
Use one with a single drain only on small tanks of 30 gallons or smaller.
I used a PF1200 for a while and then drilled my 75 for an internal overflow.

Do you make any modifications to the PF1200?

 

[nereefpat]

I believe my tank is not made of glass that can be drilled.

You can easily check if it's tempered if you have a pair of polarized sunglasses.

 

[WVNed]

I run one drain as an open bulkhead and the other as a standpipe. It's just PVC pipe.

 

[Big E]

PF-800 is fine. You don't need more than 300gph on your 75g tank. It's pointless to do more as the water isn't going to be processed.

You can use a DC pump to match flow.....maybe a valve on the box output to minimize bubbles

If using a standard pump have a valve to control return flow. There is zero chance of overflowing the box as the valve once set is static.