demorol (Hive Bee)
07-13-02 19:24
No 332102
      Construction of a low cost pH meter  Bookmark   

Another useful link for constructing electronic pH meter.

And make yourself some pH electrodes

Life without chemistry would be a mistake.
(Hive Bee)
07-13-02 23:01
No 332160
      calibrating the meter  Bookmark

(rated as:eggsellent)
(Hive Addict)
07-13-02 23:31
No 332166
      $30-$50 bucks for a submersable digital that will ...  Bookmark   

$30-$50 bucks for a submersable digital that will read to the nearest tenth.  Why fuck around?
remember to pick up some solution to give it a good cleaning every now and then (deposits can form even if its stored correctly with deionized h2o).  Those little buggers will last YEARS if you take care of them properly.

i FEEL funny.
(Hive Addict)
07-13-02 23:36
No 332168
      Excellent link  Bookmark   

Excellent link(s)!

SWiSD will begin immediatly.

Cops;100% chicken,on styrofoam,wrapped in plastic. Just plain old Fowl
07-14-02 01:44
No 332221
      look into mushroom growing  Bookmark   

i won't say where, but an excellent mushroom growing resource company also sells chep ph meters.

So you need a precursor to a pecursor, just to make a precursor