thc wax e liquid tank carts

Hi! Long time lurker... like really long. First time posting because I am going round in circles with this and I'm outside my comfort zone being new to concentrates... Started squishing rosin recently with a view to trying loading 510 carts (I get medical carts here in the UK but at £100 a ml -...

Ok I have been using the open carts for a bit and I know the liquid darkens in light etc over 4 to 5 days. Thus is darkening the same day/overnight. I am using mediCal grade ejmix. The ratio is 1:1. 1 G of goodness to 1 ML of product. I am using the .3 ohm coil running at 15 watts now. I was...