[oregon aqua]

I read awhile ago about turning a P.H. probe into a Co2 probe by adding a membrane and 4 dkh reference solution over the tip of probe. Has anyone else tried this? I'm very dependent on my probe because im a little colorblind. and the regular drop checker is ok but still hard to read sometimes. so this sounds like a pretty cool idea.

If you have tried this what kind of membrane did you use and where did you get it? Was it worth it? How long did it last? Is this good for continues monitoring like for an inline ph controller?

 

[oregon aqua]

do you think that something like this could be retrofitted? http://www.vernier.com/accessories/access.html?mem&template=basic.html

if it could i could skip the whole trying to get a membrane to fit process. I would have to modify my inline holder a little. but not as big a deal. the price is an issue 30 membranes for 26 or 1 cap for 13.

would probably end up doing a diy system but having that cap to take it apart and see how they did it would be great.