High Tide Aquatics

Nano overflow/weir?

Ibn

Ibn

Guest
BARcard
Redoing the plumbing on my 3.5 gallon to integrate a sump (approx. 5 gallons) to get more water volume and to be able to place all the equipment. I'm wondering if anyone has ever build a weir or nano overflow?

I want the overflow to gravity feed a sump which will sit right next to the tank. I need the overflow/weir to be able to keep up w/a Quiet One 3000 pump which will output to a 1/10 chiller and finally back into the tank via a spraybar.

Has anyone built something like this before?
 
This is my 3.5 gallon starfire before the meltdown.

D2X_8018.jpg


D2X_8008.jpg


The right piece of tubing is the outflow which runs to a Mag 2 and fed a Current 1/15 chiller. The spraybar is the return from the chiller. I've since swapped out the Current 1/15 chiller for a PCI 1/10 chiller. Basically want the same thing, but add a sump in between the outflow and inflow. The sump will house a Tunze 9002 nano skimmer, probes for the AC2, ATO, heater and be compartmentalize to include a refugium.
 
What's a wier setup?

Are you going to be drilling?

I'd suggest drilling and silicon'ing an external overflow to maximize space.
 
Scroll down a tad to see a weir in operation.

http://www.melevsreef.com/sump.html


Don't really want to drill the tank. It's a 4 sided starfire that's 3/8" thick. Never drilled any tank before, let alone a starfire one.
 
You know I've looked at those pictures since he posted it way back when and I could never understand how water could move up hill like that if the weir highest point, where it hangs on the tank itself, is higher than tank's water level.
 
isn't that also a siphon effect?

another option would be a hang on back type sump, where water pumps into the sump and drains back into the tank. Like the CPR aquafuge or something.
 
yeah that "Weir" is the same thing as the U-tube siphons, except that the "Tube" is acrylic and forms the contours of the tank. It's basically a CPR type overflow. http://www.marinedepot.com/ps_AquariumPage~PageAlias~overflow_boxes_cpr.html

I think I might have one laying around someplace, they still have all the issues of u-tube siphons though, except they look a little cleaner.
 
Well I understand that is similar to a u-tube, but the tube is enclosed thereby you can pull a siphon, but how do you pull a siphon if it's not enclosed.
 
Once water is covering one end (inside part of tank) the siphon will continue as long as the outside is lower than the top of the water.

Relooking at the CPR versions, there's an extra baffle such that it won't "overpull" and break the siphon if there's a power outage.
 
Hey Eric shoot me a PM if you want a HOB one.. I have a 3/4" cpr one that is fairly new.. I'm not sure if it has enough capacity for your return pump.. I think its rated for 400gph or something like that...
 
I'm not sure if drilling starphire is different then regular glass but I have small diamond bit if you want to borrow Eric.

Drilling regular glass is freaking easy man..
 
The Current 1/15 chiller went out on me and my tank temperature skyrocketed to 95F. Ended up nuking everything in the tank. Instead of going w/another Current chiller (the JBJ chillers are bank), I thought I'd try out a PCI chiller instead. They look basically the same and looks like they're made by the same manufacturer.

Doug, the CPR overflows are too big for the tanks I'm using. I actually have a CS90 that's been sitting around for awhile now and it's way too big for the application.

I'm considering using a minijet 404 to pull water from the main tank which will sit in the first compartment of the sump. Anyone think I'll have issues with it if I put it on a float switch? Another question is if a MJ 404 can keep up w/a Quiet One 3000 that's going through about 6' of tubing before hitting the spraybar? I could probably put a valve on the return from the Quiet One.
 
You must log in or register to reply here.
Back
Top