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#1
12-18-2011, 02:17 AM
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Alkalinity precipitation
Just mixed up a batch of soda ash, I'll freely admit I might not know what I am doing
 I thought I had used Randy Holmes-Farleys recipe but its precipitating and my sump is like a snow globe at one end (thankfully it settles before being sent to the display). Any ideas on what I'm doing wrong? Did I mix it up too strongly? This used to happen before I stopped baking my baking soda and switched to just regular baking soda, no precipitation with the regular 
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Christy's Reef Blog My 180 Build Every electronic component is shipped with smoke stored deep inside.... only a real genius can find a way to set it free. 
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#2
12-18-2011, 03:31 AM
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I once dose high density soda ash, It sure raised the PH. Tried it cut with various amounts of baking soda, trying to stop the snow storm. By the time I stopped I had about a 1/16" coating of calcium carbonate on the inside of my sump.
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#3
12-18-2011, 03:36 AM
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I'm using soda ash as well.....and no matter how slowly I add it to the sump the same thing happens.....what I've discovered it that if I dump in the return section (as it has the highest flow) it snows in there but after getting chopped up in the return pump I don't see anything in the display.
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90 Gal mixed reef with a custom 40 gal sump, SWC Mini S skimmer, 8X56 Watt fan modded Tek, 2x2LF reactors, mag 12 return, Tunze ATO and a modded Tunze 6100 running on a DIY wave controller My TOTM thread http://www.reefersparadise.com/smf/i...?page=page4263
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#4
12-18-2011, 04:19 AM
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Quote:
+1 The BRS soda ash is really bad for precip. It's by a Drew's Doser to the return section of the sump, where I had to add an MJ 900 to move the water around enough to stop precipitate.
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225g reef
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#5
12-18-2011, 05:37 AM
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I just dump it in front of a powerhead in the display tank by the cupful, I've never had any precipitate......although come to think of it, it is in the morning when the lights are off maybe I just don't see it
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#7
12-18-2011, 03:02 PM
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Pretty normal for that to happen.
I use the dosing pumps to drop into the return part of the sump. That way it gets swirled into the pump and I don't ever see it in the DT. But when I dose manually I always see precip. Just need to use a small pwr head to mix or manually mix with small cup. It clears up quickly once stirred.
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