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::pete::
Thu, 25th Aug 2005, 02:23 PM
Phosphate Colorimeter (http://cgi.ebay.com/Live-Coral-Hanna-Low-Range-Phosphate-Colorimeter_W0QQitemZ7707800146QQcategoryZ3212QQrd Z1QQcmdZViewItem)


Do a search as there are cheaper ones ...

Phosphate Colorimeter low range Hanna Digital 2 year warranty. $159.89
GaryP
Thu, 25th Aug 2005, 04:51 PM
OK, let me put in my .02 in here. I have used a similar colorimeter in the past. They are pretty good. Now for the bad news. It doesn't measure meta phosphate any better than the standard test kits. You are still only measuring ortho phosphate. That would be OK for measuring source water, but not for tank water.
::pete::
Thu, 25th Aug 2005, 05:23 PM
OK, let me put in my .02 in here.


No one asked :P