I’ve got a WM Ultralite sleeping bag that I bought about 2006. It has a YKK 5N (top pull) or 5CN (bottom pull) coil zipper that opened up recently (was zipped up…then the two sides just came apart).
I got the zipper pull down and then gently back up again with the zipper properly mated, but it feels balky. On close inspection, there seems to be a layer of gunk on the outside edges of each row of teeth. (Or maybe it’s just wear. )
So. What’s the best way to clean it? If I scrub away with a toothbrush and soapy water I worry about leavning soap on it.
Any tips?
Also, if I went to the trouble of washing the whole bag, would that actually clean the gunk off the zipper?
I thought of trying to use pliers to squeeze the pull shut a bit, but it doesn’t look like that’s possible with that divider that’s in the upper pull.


