Try a different brand, pink dye to know for sure xx
Do evap lines come up within the 3 minute window usually? As it’s been within the time frame each time like straight away
I agree with @Deb just try a pink dye they usually show alot clearly than blue dye ♥️
Thank you, have bought a pink dye one to try tomorrow!🤞🏼x
Good luck xx
I’ve had a evap line on this test before. I’d test again and read the test within the advised time frame. Good luck x