Using a single drinking straw...I will finish this cart and then cut them notches!
Thanks for your help.
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Thanks for your help.

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I've never understood people who are concerned about crazy and obsessed people.Yeah, my husband thinks I'm crazy & obsessed.
Are you using one drinking straw or two coffee straws?
With one drinking straw, you put 2 notches at the mouth end and make sure the notches are turned to the short side of the cart, especially if the straw is pressed against the long side of the cart, because you don't want to block them & the airflow.
The face scrub I'm using for the plug is a Walgreen's brand Facial Cleansing Sponge.
Facial Cleansing Sponges | Walgreens
It has a definite grain to it, so it's important that the side of the sponge material is the top of your plug - this lets you squeeze it like an accordian to put it in the cart & it expands to plug the end. If you put it the other way, it'll expand up/down and won't wick at all.
so... after reading this thread i decided i MUST try this... got home... FAIL. i did both the vertical and horizontal spring , and the straw , varying sizes of poly-plugs... FAIL , all i got was a mouth full of juice.
Weird....
Usually, when I have it wrong.... it'll leave the atty too dry and I'll get liquid starvation. The only times I've flooded the atty or dumped the load was when I had some kind of gap between the filler and the cartridge wall.
But..... I quite using poly with this mod some time ago.
yeah i don't know what i did wrong , what do you substitute the poly with? mine was packed pretty well. I was also stoked to make a video about how bad ... this mod was... i still like using carts... but just can't seem to make this work...![]()
kristin i see that Buff Puffs come in regular to extra gentle. which would you suggest using?Oh, I see you're in the UK - if you don't have a Walgreen's there, the brand name for the non-generic sponge is a "Buff Puff".
I use Walgeens generic brand - I'd venture a guess that they would be a copy of the "regular" version. The key with the buff stuff (I stopped calling it a "puff" for the he-men, lol) is that it has an accordian type property to it. When you look at it from the side and squeeze it, you can see how a majority of the fibers run in one direction. When you squeeze it together, it springs back out - but only in one direction. This makes it great for a plug, because you squeeze it to get it in the cart and then it springs back out to seal the end - yet leaves the channel for the liquid to get through.kristin i see that Buff Puffs come in regular to extra gentle. which would you suggest using?
a quick check on poylurethane degradation shows that at temps of 160-200c the urethane component will dissociate to isocyanate and polyol.the polyol is no problem but isocyanates are toxic. not sure what temps are at the bridge but may want to rethink its use.I need a little more direction on how to cut the buff stuff
Also did you wash the sponge first?, I notice a white dots or grains on it. The ingredients said Polyester Fiber (good) and Polyurethane Binder (dont know if good)![]()