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Ultra Member
ECF Veteran
as far as i know the blue foam thing cruised around here some time ago. nothing for me, too much flooded atomizers.
if it works for you, fine. but as with all cartmods, be careful especially with automatic batteries.
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I'm using the *exact* same foam, but with ScottyBalls' spring mod. It does fit a 510 cart perfectly, without fraying or loose threads like polyfill.
I find that you have to cut the size of the foam perfectly to get good wicking without flooding. But it's an easy process - make it a little too big, and vape. If you find yourself with a dry atomizer when there's still fluid in the cart then trim the filter a little, put it back in, and add a drop of juice on top to get it wicking again. The second picture in post #2, showing the piece of blue foam next to the cart, looks to be exactly the same size as my piece of filter currently in my 510.
I agree about having a spring in the cart - I also worry about rust, metallic contamination, zinc flaking off, anything. I just don't like it, so I may have to move to this mod. But the spring does keep the foam in the right position, with constant pressure against the atty. I don't like the idea of only having friction to hold it in place - I like pressure.
I may move to having this foam near the bridge, and having some very coarse foam filling the bottom just to supply some pressure against the bridge.
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Lets see if I have this right. You fill your cart with liquid and then just plug it with this foam. Do you use any filler, or the cart is just filled with liquid? If so, doesn't the liquid seep out the end you draw on?
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The cart is ~80% filled with fluid. The foam acts as filler for the top 20%, acting as the filler, and a barrier against the fluid simply falling out.
The liquid doesn't seep out against the end you draw on because the reservoir is sealed at that end. When you draw on an e-cig the air flows along the side(s) of the fluid reservoir, not through the reservoir.
Last edited by Scottes; 11-02-2009 at 01:51 PM.
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Take a look at the last pic eclypse posted. See the little slits on each side? Those are the air-paths, going around the reservoir.
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Ok. Thanks so much for clarifying that. Sounds like a mod I need to try. This way you have lots of liquid instead of filler in the cart. No need to refill so often. Is this blue foam used in aquarium filters? I'm not familiar with it. The bag doesn't specify what it's for. Also, the foam doesn't melt at all?
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Yes, pet stores are the best place to check. The bag kinda says what it does - but I guess you have to know aquariums to understand, LOL.
Just about anything* that you carefully use for filler won't melt because it's not near anything hot enough to melt it. Only the atomizer coil is that hot, and the filter won't touch that - the filters touches the bridge which touches the wick inside the atomizer coil. Juice wicks from the reservoir to the blue foam to the bridge to the coil wick.
* Polyfill fibers are loose and long, so they can posibbly get to the coil. This foam doesn't have loose fibers, so it's far, far less likely.
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