<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by StevenL:
Since I am an owner of a Hagen PO4 test kit, I did a test. I added several drops of fleet enema (Johnson & Johnson brand) to the water in the test tube but the kit shows that there is no PO4...
Now it is the problem of the test kit or the fleet enema?<HR></BLOCKQUOTE>
Opps, I should have waited longer for the color to develop. Now the test kit shows there is approximately 0.5 - 1ppm of PO4 in the water. I did a rough calculation the number seems about right.