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does anybody know what this is?

i found this while i was taking apart a broken pool water heater, it looks like fiberglass but it also kinda looks like asbestos, i took a small sample of it, here is a picture: EDIT: it is also very fine and fibrous, the picture kinda sucks but, i hope someone can help me

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6 answers
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Mar 7, 2009. 9:55 PMNobodyInParticular says:
Try going in a dark room and burning a piece in a blowtorch, alcohol, or other pale-colored flame. How easily does it melt or burn? What color does your flame change to (if at all)? If you have a good oven thermometer, try to see at what temperature it melts and/or burns.
Mar 8, 2009. 6:31 AMKiteman says:
It's probably glass fibre, then.
Mar 8, 2009. 8:05 AMlemonie says:
I think it's glass fibres too. They can irritate your skin - be careful. L
Jun 10, 2010. 10:38 AMveeguy says:
My guess is its fiberglass filter material. The fiberglass is twisted into filaments which are wound around a plastic filter cartridge form. It looks like your filter cartridge is breaking down after a long hard life. Most pool or home improvement supply houses can supply a replacement cartridge for about 10 bucks or less. Measure the old cartridge forthe proper replacement.
Mar 8, 2009. 10:01 AMNachoMahma says:
. Unless it's a very old heater, it will not be asbestos. Probably ceramic fiber/wool or fiberglass.

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