skuzza Posted January 13, 2005 Report Share Posted January 13, 2005 When you mix kalkwasser there is a white substance that settles on the bottom before dosing.Is this left over kalkwasser and can you just add water to it and remix it. Quote Link to comment Share on other sites More sharing options...
lduncan Posted January 13, 2005 Report Share Posted January 13, 2005 It's a mixture of stuff, some is left over kalk, but some is also calcium carbonate (very insoluble) which is formed when the kalk solution is exposed to carbon dioxide in the air. This is why kalk solution goes "off", eventually all the calcium will precipitate out as limestone (calcium carbonate), leaving nothing but water. It's fine to recycle it, but eventually more and more calcium carbonate will be formed, and you'll have to through it out. Layton Quote Link to comment Share on other sites More sharing options...
Pies Posted January 13, 2005 Report Share Posted January 13, 2005 Everything you want to know about Kalkwasser, how it works, whats in it, how best to use it, if you should use vinigar or if you should use Kalk infact EVERYTHING. www.reefcentral.com, reefkeeping online magazine this month has a MEGA article from Randy Holmes Farley "What your grandmother didn't tell you about lime". 10/10 worthy read, and removes the necessity to every read anything else about kalkwasser. Pie Quote Link to comment Share on other sites More sharing options...
suphew Posted January 13, 2005 Report Share Posted January 13, 2005 Here's a link to a good paper a found on reefcentral which explains a lot. http://reefkeeping.com/issues/2005-01/rhf/index.htm Interesting bit in regards to your question "This purification is also seen in practice by many aquarists who have noticed the solids on the bottom of their limewater containers discolor, often to a bluish/green color suggesting copper. For these reasons, I recommend that lime solids not be dosed to aquaria when it is possible to avoid it. Letting the limewater settle for a few hours to overnight will permit most of the large particles to settle out, and whether it looks clear at that point or not, it is likely fine to use. In general, it is a good practice to leave residual solids on the bottom of limewater reservoirs rather than cleaning them out every time, as they may actually help purify the water by these precipitation mechanisms. Once the solids discolor, or have been collecting for 6-12 months, however, they should be discarded." Quote Link to comment Share on other sites More sharing options...
suphew Posted January 13, 2005 Report Share Posted January 13, 2005 Haha bet me to it by 30 seconds! Quote Link to comment Share on other sites More sharing options...
Pies Posted January 13, 2005 Report Share Posted January 13, 2005 Quote Link to comment Share on other sites More sharing options...
RnB Posted January 13, 2005 Report Share Posted January 13, 2005 ok, yes i work in IT but cannot I get decent printouts of articles off Reefcentral mag.... no how i print in portrait so the RHS words do not get cut off...... some sites have print friendly versions etc etc :roll: Quote Link to comment Share on other sites More sharing options...
Pies Posted January 13, 2005 Report Share Posted January 13, 2005 Print is dead Quote Link to comment Share on other sites More sharing options...
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