Hi! I did a Clear & Simple test yesterday and today and got faint lines. However, I was feeling a little unsure about this brand of test as I got faint lines on them last month too (assumed it was a chemical) so I used another test and dipped it in water. And there’s a faint line on that one too!
Here are the 2 tests (I took them out the plastic to see better - I know, I know - but took photos immediately and lines were evident even with plastic on). Top one is with urine, bottom with water.
Given that both have lines, should I assume it is just an evaporation line and negative? (Never using this brand of test again!)