wade November 25, 2013 Share November 25, 2013 Unfortunately the advanced aquarist site was not working yesterday so I never to to actually start the lie process. They are upgrading servers. It should be back and faster soon. Link to comment Share on other sites More sharing options...
Origami November 25, 2013 Share November 25, 2013 Here's a spreadsheet that I downloaded from somewhere that may help (it has instructions), Paul. Regen GFO.xlsx Link to comment Share on other sites More sharing options...
GraffitiSpotCorals December 4, 2013 Author Share December 4, 2013 Here are the pics of me cleaning the gfo with ro water. Link to comment Share on other sites More sharing options...
GraffitiSpotCorals December 4, 2013 Author Share December 4, 2013 I ran 30 gallons through it, can't remember what they recommended but I think I doubled it. Then I let it dry out some. Tested phosphates in out anemone tank and just using a bag floating in the hang on back skimmer they dropped a decent amount in 12 hours so the process seemed to work well! All the corals in the tank looked normal as well. Link to comment Share on other sites More sharing options...
GraffitiSpotCorals December 4, 2013 Author Share December 4, 2013 If its all the way dry when over home I will weigh it and see if there was much loss. I don't believe there was at all, mainly from me being messy. They whole process was painless except worrying about the lye but it seems it was WELL worth it and I don't know why more people don't use this method. I will be adding this in reactors to our other two systems this week Link to comment Share on other sites More sharing options...
Origami December 4, 2013 Share December 4, 2013 Great job, Paul. Just remind people to be careful with the lye. It's as caustic as muriatic acid is acidic. But, with proper equipment, handling, and safety precautions, the risk is very easily managed. Link to comment Share on other sites More sharing options...
Origami December 18, 2013 Share December 18, 2013 Paul, I just found and ordered 16 pounds of food grade lye from essentialdepot.com for under $32 (through shipping). I'll use it on a variety of things, but thought that I'd pass on the online source. Link to comment Share on other sites More sharing options...
Manny December 20, 2013 Share December 20, 2013 I read a translated japanese article a year or two back that discusses gac regeneration. Turns out you can regenerate gac using the opposite steps as gfo. Lye first then acid. acid dissolves a bit of gfo though. If you have both mixed, maybe you can try the gfo steps and it may help gac as well Link to comment Share on other sites More sharing options...
wade December 20, 2013 Share December 20, 2013 I can't imagine GAC re-activation is quite as effective due to the nature of the chemical bonds. It is generally created by high temp, high pressure oxidation of all the extraneous junk. I'm guessing it'd largely work, but is it worth the cost? Link to comment Share on other sites More sharing options...
GraffitiSpotCorals December 20, 2013 Author Share December 20, 2013 Paul, I just found and ordered 16 pounds of food grade lye from essentialdepot.com for under $32 (through shipping). I'll use it on a variety of things, but thought that I'd pass on the online source. Sweet! Thanks, that makes this process for me a no brainer! The setup I made is capable of regenerating probly up to 15 pounds at one time. Link to comment Share on other sites More sharing options...
Manny December 21, 2013 Share December 21, 2013 I can't imagine GAC re-activation is quite as effective due to the nature of the chemical bonds. It is generally created by high temp, high pressure oxidation of all the extraneous junk. I'm guessing it'd largely work, but is it worth the cost? Here is the article. I haven't re-read it, but I remember it saying something like 95% regeneration for GAC: http://www.ijcce.ac.ir/ijcce/ArticlePPDF/20092849.pdf Link to comment Share on other sites More sharing options...
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