Would marks from a #2 pencil (in the US) be safe in a tank?

kdx7214 · Jun 28, 2023

My wife has been making filter socks for my tank. I've offered to do it, but she loves sewing. She wants to know if she uses a #2 pencil to mark lines for cutting if that would be a problem.
I know that pencil "lead" is just graphite and clay, but I'm not certain of the components in either.

The_Paradox · Jun 28, 2023

Will be fine. If you have any doubts just wash it first.

Would marks from a #2 pencil (in the US) be safe in a tank?

kdx7214

Well-Known Member

The_Paradox

Valuable Member

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