Questions tagged [corrosion]

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9 questions with no upvoted or accepted answers
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Iron bar set in concrete heavily corroded; how to mitigate?

I have a decorative concrete column (solid concrete with rebar) in front of a multi-storey house, about 10m hight. Said column is held by three thick steel bars (6 x 2 cm) that link it to the house, ...
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2answers
128 views

Protecting bathroom mirror from corroding around the edges

In my bathroom I have a beautiful illuminated LED mirror. It's now 10 years since I originally installed it - and over time, the edges have become de-silvered as the backing coat has corroded and ...
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0answers
67 views

Copper corrosion, well water

My well water pH is 7.06 as measured by an accurate and calibrated tool used for wine making. I have around 15 gpg of hardness. My question is why I am getting between .5 - 1.0 mg/L of copper in my ...
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1answer
63 views

Water Heater Help

I was woken to a pop and a electrical burning smell. Upon inspection I found the water heater breaker tripped. When I checked out the water heater I found whats pictured. My question is the cold water ...
0
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1answer
139 views

Unfinished basement electrical re-wiring, protecting cables on cinderblock, also corrosion concerns

My basement has old electrical wiring, looks like it was a replacement for some even older knob and tube (which they largely left in place of course). While they did wire up lighting somewhat, though ...
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1answer
57 views

Toilet flush button is corroded and gets stuck

My toilet flushing button gets stuck with one button extended. It doesn’t affect the toilets flushing but it is a little ugly. I’m very new to DIY so I’m not sure if I can just scrub the blue stuff (...
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0answers
217 views

Can I cover rebar sticking vertically out of the ground with something that would permit me to pour concrete over top of it?

First off, this project is free from review from inspectors; i.e. none of this has to be to code. I want to pour a concrete column. The column isn't structural - it's like a column you may find at ...
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0answers
35 views

Battery terminal in wireless light switch corroded

I have a wireless light switch in my garage which uses 4 triple-A batteries. When the switch quit working recently, I took off the cover to replace the batteries and saw that the terminals were all ...
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0answers
2k views

What is this blue build-up on my pipes, and is it an issue?

I've looked around the intertubez, and think this MIGHT be galvanic corrosion, but there was NO sign of it when we bought our 1930's house 5 years ago. The Taco pump WAS replaced 3 years ago (that's ...