metal contamination in tank

[KevinK]

Originally Posted by fishytime

eeeeeek......having a rusty bolt in the sump for potentially that long cant be good.....good thing you found it....

I'm glad I found it, but was gust wondering what it did, as we all dont want it in, it gust wonders me, based on what dont we want it in.


lets hope some others pitch in to find out.

so we dont want it in, but why, what douse it do ?