Hiya, I'm late to the party as usual...But I'm happy to see that some of you are attempting to get to bed at reasonable hours. I worry about you!
Thank you Salem for the TT updates!
Sdh, I don't know about the mega cartos you're talking about, but I do know that I gave up on cleaning cartos a long time ago, and now I just toss them. Of course, the ones I use are probably cheaper than the ones you use...
But, if you're going to clean them with hot water...I do recommend using a blue ear cleaning bulb to blow out the water. You can cut the tip of it off to fit the carto perfectly. Somewhere there is a video showing how to do it...