Tandem changes its cartridge

See my post here about the abysmal quality of the T:90 sets. I’ve been pumping for 17 years and never had any major problems until now. Since using the TSlim in March, I haven’t felt this bad since being diagnosed with T1 in 1987.
You are absolutely correct! And yes, the fill process for a slim takes forever! Unomedical Supplies' Inconsistent Quality - #5 by Kevin23