something to reef on Posted February 23, 2015 Share Posted February 23, 2015 First time setting up a tank with an overflow. It's a 100 gal with two corner overflows, each has two holes drilled in bottom. My thoughts are to put one durso type drain in each corner overflow, use one as a return, and setup one as an emergency drain. I am going to try to run about 800 gph through this. I beleive they are all 1 inch drains, I have not measured yet. Is this an okay plan? I plan to plumb each drain independently to the sump, not tie them together. Thanks Quote Link to comment Share on other sites More sharing options...
jestep Posted February 23, 2015 Share Posted February 23, 2015 It's most likely made for 1 drain and 1 return per overflow but you can configure however you want. No problem running separate drain lines. This is preferable IMO. I would use a multi sock holder and run each of them into its own sock if you are planning on a berlin style sump. If one of the drains is just for emergency, don't worry about a sock holder for it. As far as flow rate, I always find it easiest to get a reasonably sized pump and use a valve on the output to adjust the flow rate until you find an acceptable flow/noise. Hard to say whether 800 is too much for a quiet system, but I would imagine it should be fairly close to that. I think I am running about 350 through a single 1" durso on my 90. If you're looking for a pump, the eheim compact and eheim hobby pumps are super reliable and about as quet as submersible pumps get IMO. I use a compact 3000 on mine, but it's mostly throttled down. 1 Quote Link to comment Share on other sites More sharing options...
something to reef on Posted February 23, 2015 Author Share Posted February 23, 2015 So do you think it is even neccesary to have an emergency drain if I have two primary drains? I guess once I get all the parts, I can mess with it to see what happens when the pump goes out or if one of the drains gets clogged. Quote Link to comment Share on other sites More sharing options...
Viet'spride70 Posted February 23, 2015 Share Posted February 23, 2015 its not neccessory to have extra drian as u think. in dulso drain, u might get salt build up in the vent hose after 3-4 months, when it does u ll notice a whisling sound, all u need is some ting to clean it all...back to action. Quote Link to comment Share on other sites More sharing options...
MantaFan Posted February 23, 2015 Share Posted February 23, 2015 My $0.02.... I'm not a fan of the durso at all. They're never going to be very quiet. I built the Herbie method in my tank and it's perfect. Completely silent! Check it out here: www.gmacreef.com Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
jestep Posted February 23, 2015 Share Posted February 23, 2015 ^ I definitely agree with running a herbie if possible. I've typically seen them as horizontal or coast to coast style boxes though. My previous tank had a horizontal one, and it was much quieter than my current durso. Quote Link to comment Share on other sites More sharing options...
Viet'spride70 Posted February 23, 2015 Share Posted February 23, 2015 That's a good option to consider, but in his case all that herbie plumpings may not fit in overflow box....plus a return pipe. Quote Link to comment Share on other sites More sharing options...
Timfish Posted February 23, 2015 Share Posted February 23, 2015 Redundancy is always a good thing in my book, use two drain lines and two pumps if feasable. I don't use socks much but having the option is fine. Quote Link to comment Share on other sites More sharing options...
something to reef on Posted February 24, 2015 Author Share Posted February 24, 2015 Thanks for the help. I'll check out that herbie option to see if its feasible or not. Thanks! Quote Link to comment Share on other sites More sharing options...
FarmerTy Posted February 24, 2015 Share Posted February 24, 2015 Perhaps use the two drilled holes for the herbie and then just run the return flow behind the tank and over the back of the glass? Quote Link to comment Share on other sites More sharing options...
MantaFan Posted February 24, 2015 Share Posted February 24, 2015 Perhaps use the two drilled holes for the herbie and then just run the return flow behind the tank and over the back of the glass?Yip that's what I did... I fought the idea of a return line over the back of the tank, but now that it's setup it's SO worth the one time trouble to get it done right.Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
something to reef on Posted February 24, 2015 Author Share Posted February 24, 2015 Thanks for that link MantaFan, a lot of good info there. How often do you find yourself having to adjust the water flow to maintain the right water level? Quote Link to comment Share on other sites More sharing options...
MantaFan Posted February 25, 2015 Share Posted February 25, 2015 I have it dialed in now and rarely touch it. I'll peek at the emergency drain line to make sure it's trickling like I want, but I seldom adjust it. I actually have dual overflows so I have two siphons and two emergency drains. It took a little tweaking to get them in sync, but now that they are its bulletproof. I'm in Lakeway if you ever want to stop by to see. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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