Quote Originally Posted by Sakeller24
Okay so I wanted a little reassurance that the dilution method would work to get me below the threshold so I ordered these at home drug tests.. Amazon.com: THC Marijuana Dip Strip Test Pack of 10: Health & Personal Care

Basically one line means positive and two means negative; however, I'm getting no lines repeatedly. I'm sure I'm doing the test right. It says no lines means the test was invalid but gives no further explanation. Do you think maybe my urine is too dilute to register even the control line? (i.e. it thinks it's just water).

Just wondering what you all think before I waste any more of these.
I would say that you got some bad test strips. I have ordered the same ones and never had any problems.

No, over diluting would not effect the test. If you stuck one in a glass of water you would get two lines, the negative result.