R-3 Posted November 1, 2008 Share Posted November 1, 2008 Hey Im getting ready to plumb my peninsula tank and had some questions for the fellow tank plumbers out there. I have two 1 1/2" holes in my overflow, how do I utilize both? Two Dursos?? Just trying to figure out how to incorporate both since its a 215G tank. I can fit 1 1/2" pipe in the box but would be nice to do like 1 1/4". Let me know what ideas ya guys got. Im using a Genx 4100 for a return up over the back of the tank. Thanks Ryan Quote Link to comment Share on other sites More sharing options...
kriswaters Posted November 1, 2008 Share Posted November 1, 2008 When you say overflows, is that a seperate "box" or part of your tank? Kris Quote Link to comment Share on other sites More sharing options...
R-3 Posted November 1, 2008 Author Share Posted November 1, 2008 Inside the tank two holes drilled inside of the box. Both holes are 1 1/2". THanks Heres a pic Quote Link to comment Share on other sites More sharing options...
Kshack Posted November 1, 2008 Share Posted November 1, 2008 Is that a 1 1/2 inch hole or bulkhead? If it is a hole, can you get an 1" bulkhead to fit? If a 1" fits, then go with two Durso with 1 1/4" pipe in the overflow. Ken Quote Link to comment Share on other sites More sharing options...
Theron Posted November 1, 2008 Share Posted November 1, 2008 I would go with a syphon overflow. Both plumbed to the sump, but one has a valve. You adjust the valve so that one syphons the water and keeping the water level you desire. The second one is plumped to the height of the water. 99% of the water will syphon down the one with the valve and 1% trickle down the second one. The second one acts as a emergency incase the first gets blocked. That is how I have done it on my 300gal. It is dead silent. Theron Quote Link to comment Share on other sites More sharing options...
R-3 Posted November 1, 2008 Author Share Posted November 1, 2008 Its two 1 1/2" bulkheads. Hey Theron can you go into a little more detail? Thanks Quote Link to comment Share on other sites More sharing options...
fishmanmike01 Posted November 1, 2008 Share Posted November 1, 2008 I would go with a syphon overflow. Both plumbed to the sump, but one has a valve. You adjust the valve so that one syphons the water and keeping the water level you desire. The second one is plumped to the height of the water. 99% of the water will syphon down the one with the valve and 1% trickle down the second one. The second one acts as a emergency incase the first gets blocked. That is how I have done it on my 300gal. It is dead silent. Theron I would agree with Theron,i utilize the same set up but in an external overflow box.It is silent and also provides a failsafe. Quote Link to comment Share on other sites More sharing options...
spectra Posted November 2, 2008 Share Posted November 2, 2008 Yes go with Herons idea(rock2) That is the herby overflow the same way the 90 you picked up from me was plumbed. Here is how it works one run is plumbed with the drain about half way up the overflow and on the other end is a gate valve as they work the best compared to a ball valve. Plumb it to the sump and call it done on that one. The second one has the pipe run almost to the top of the teeth and then just straight to the sump and it is done. Now the fun part turn on the return pump and watch what happens you adjust the gate valve so the water level sits just below the second drain. This system is quiet and works great(rock2) I have had both the durso and the herby and will always go with the second over the first. Quote Link to comment Share on other sites More sharing options...
chewie Posted November 2, 2008 Share Posted November 2, 2008 If they're 1.5" holes, you will only be able to fit a 3/4" B/H. If it is 2 1.5" bulkheads, you have plenty of options but for quietness go with the above advice. Just keep one of the 1.5" drains as a backup. You can also use the main line to feed your skimmer and keep the other as a backup. Quote Link to comment Share on other sites More sharing options...
R-3 Posted November 3, 2008 Author Share Posted November 3, 2008 Yeah I had heard about the Herbie before. So I set it up like you guys said. I still gotta go get a ball valve for the one drain and glue it up. Thanks for the help guys I think I got it setup right and I will keep you updated on how it works. Later Ryan Quote Link to comment Share on other sites More sharing options...
Sol Posted November 3, 2008 Share Posted November 3, 2008 I STRONGLY recommend using a gate valve over a ball valve for this. Sol Quote Link to comment Share on other sites More sharing options...
R-3 Posted November 3, 2008 Author Share Posted November 3, 2008 Why is that Sol? I have a gate valve laying around that I could use. Later ryan Quote Link to comment Share on other sites More sharing options...
Sol Posted November 3, 2008 Share Posted November 3, 2008 Fine tuning. A ball valve is pretty much on or off with only a little tuning in between. A gate valve has a lot more control. Sol Quote Link to comment Share on other sites More sharing options...
spectra Posted November 3, 2008 Share Posted November 3, 2008 NO BALL VALVE! Get the point(laugh) Use the gate valve you got from me(whistle) Gate valves are much easier to adjust and just work better. Quote Link to comment Share on other sites More sharing options...
Theron Posted November 3, 2008 Share Posted November 3, 2008 You can use a ball valve. But if you do, it just needs to be a good quality one. I use a hayward valve and is very easy to make fine adjustments. Quote Link to comment Share on other sites More sharing options...
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