Ronjunior Posted December 18, 2007 Share Posted December 18, 2007 Hey, can't find any salinity calibration fluid at LFS that's not a week out in ordering. Nor do I have ro/di. If someone is fairly close that could spare a few drops of salinity calibration fluid, I would much appreciate it. I got a new refractometer and it reads at SG 1.001 with tap water and reads .0001 higher than my year old hydrometer...don't know which to trust and need accuracy with doing hypo in my hospital tank. Thanks in advance. 503-558-8738 home number and here most hours. Would love to stop by tonight. I'm in the Clackamas area, but willing to travel, Salem is a bit too far Quote Link to comment Share on other sites More sharing options...
siskiou Posted December 18, 2007 Share Posted December 18, 2007 There was a recipe somewhere online how to mix your own solution with RO water and a certain amount of table salt in case you can't find something close to you. Quote Link to comment Share on other sites More sharing options...
impur Posted December 19, 2007 Share Posted December 19, 2007 I have some, but too far unfortunately. SG calibration is a must IMO. My refractometer is slightly off about every 3 months. Quote Link to comment Share on other sites More sharing options...
Twitterbait Posted December 19, 2007 Share Posted December 19, 2007 just distill some water start a pot of boiling water and collect some of the condensed water on the lid. Quote Link to comment Share on other sites More sharing options...
Lowman Posted December 20, 2007 Share Posted December 20, 2007 Ron, I have some Quote Link to comment Share on other sites More sharing options...
Ronjunior Posted December 20, 2007 Author Share Posted December 20, 2007 Thanks Bob- I stopped by Joel's and double checked with some ro/di water yesterday. Quote Link to comment Share on other sites More sharing options...
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