scubasteve92 Posted May 7, 2015 Share Posted May 7, 2015 I am setting up a small (15g) frag tank, it will be an independent system and I am having some issues deciding how to set up the overflow. The tank is drilled and has an overflow and a return. I will be using a 1 inch bulk head for the overflow and a 1/2 inch for the return. My question is how should I do the plumbing for the overflow? I wont have a emergency drain but I want to use a ball valve on it so that I can adjust the flow for noise and also shut off the water to the sump. I was thinking standpipe or durso. What do you guys think? Josh Quote Link to comment Share on other sites More sharing options...
nvrEnuf Posted May 8, 2015 Share Posted May 8, 2015 I think use a gate valve instead of a ball and that durso is usually the way to go unless noise is not an issue Quote Link to comment Share on other sites More sharing options...
scubasteve92 Posted May 15, 2015 Author Share Posted May 15, 2015 I think use a gate valve instead of a ball and that durso is usually the way to go unless noise is not an issue any reason to go with gate vs. ball? Never had one on my tank Quote Link to comment Share on other sites More sharing options...
Neon Reefer Posted May 15, 2015 Share Posted May 15, 2015 tank drilled on bottom with a standard overflow box I would use a stand pipe w/ a Maggie Muffler on top. Very easy, effective and cheap way to go. Can still use your gate valve for flow control if wanted. If drilled on back I would go with a low profile box on the inside with a 90 coming off the bulkhead on back with the valve set to maintain a proper level in the box. Quote Link to comment Share on other sites More sharing options...
scubasteve92 Posted May 18, 2015 Author Share Posted May 18, 2015 tank drilled on bottom with a standard overflow box I would use a stand pipe w/ a Maggie Muffler on top. Very easy, effective and cheap way to go. Can still use your gate valve for flow control if wanted. If drilled on back I would go with a low profile box on the inside with a 90 coming off the bulkhead on back with the valve set to maintain a proper level in the box. You think I should be worried about the gate valve being clogged at any point? It is a frag tank and will likely not have anything in it to get sucked in but you never know. Quote Link to comment Share on other sites More sharing options...
Neon Reefer Posted May 18, 2015 Share Posted May 18, 2015 On a tank that small I would just use a small slice of sponge in a low profile overflow skimmer box with the 90 elbow on the back and your valve to control the flow. Should be good to go. In a box that small you arenot going to need much flow to the sump. Probably < 2 Gal per hour is all that is needed. A Hydor Centrifugal 70 pump is 70 gph and at 3 feet will make ~ 20gph and you would probably need to adjust it down to get to 10gph and that's way more than you need for filtration. I would hope a tank this small is only to keep frags in while in QT prior to DT. Will be plenty hard to keep SPS in a tank this small. Quote Link to comment Share on other sites More sharing options...
scubasteve92 Posted May 18, 2015 Author Share Posted May 18, 2015 On a tank that small I would just use a small slice of sponge in a low profile overflow skimmer box with the 90 elbow on the back and your valve to control the flow. Should be good to go. In a box that small you arenot going to need much flow to the sump. Probably < 2 Gal per hour is all that is needed. A Hydor Centrifugal 70 pump is 70 gph and at 3 feet will make ~ 20gph and you would probably need to adjust it down to get to 10gph and that's way more than you need for filtration. I would hope a tank this small is only to keep frags in while in QT prior to DT. Will be plenty hard to keep SPS in a tank this small. It's drilled in the bottom so I will go with a stand pipe with a durso or maggie muffler (never heard of this until now) and I am thinking that I am going to use a sicce syncra silent .5 pump. The sump is a 20g tank so the entire system will be around 25 gallons or so. I have done sps in smaller tanks before Quote Link to comment Share on other sites More sharing options...
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