Author Topic: Plumbing question  (Read 541 times)

Offline JayUtah

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Re: Plumbing question
« Reply #15 on: January 26, 2021, 12:14:38 PM »
Somewhere, on a plumbing forum, someone is asking about unsymmetrical dimethylhydrazine....  :P ;) ;D ;D ;D

Which actually does pose a not-insignificant problem for its plumbing.
"Facts are stubborn things." --John Adams

Offline Peter B

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Re: Plumbing question
« Reply #16 on: January 26, 2021, 06:26:55 PM »
Somewhere, on a plumbing forum, someone is asking about unsymmetrical dimethylhydrazine....  :P ;) ;D ;D ;D

But isn't there a vague Apollo connection?

I have this memory of a problem with hydraulic fluid in either the Saturn vehicle or the Apollo spacecraft which kept producing crystals that had the potential to block up the plumbing?  :o

Or do I have it wrong?

Offline VQ

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Re: Plumbing question
« Reply #17 on: January 26, 2021, 07:03:54 PM »
Here's the stuff. The view shows the top of the cap that is inside the tap.

BTW, it is lovely to see the stream of water from a freshly descale thingy.

Looks like a mix that includes copper carbonate and maybe Fe3O4, to the extent that it's possible to tell these things from a photo.

Offline gwiz

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Re: Plumbing question
« Reply #18 on: January 27, 2021, 06:45:59 AM »
Certainly the water here in the south of England is rock hard.
Not everywhere.  Ours comes from rain on granite moorland and not much of that gets dissolved.
Multiple exclamation marks are a sure sign of a diseased mind - Terry Pratchett
...the ascent module ... took off like a rocket - Moon Man

Offline molesworth

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Re: Plumbing question
« Reply #19 on: January 27, 2021, 06:48:34 AM »
Looks like a mix that includes copper carbonate and maybe Fe3O4, to the extent that it's possible to tell these things from a photo.

Have you tried the Firefox Spectroscope plugin?  ;)
Days spent at sea are not deducted from one's allotted span - Phoenician proverb

Offline Glom

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Re: Plumbing question
« Reply #20 on: January 27, 2021, 10:22:58 AM »
It reminded me of miniature blue slate I've used in garden. Thought it looked quite nice.

Offline VQ

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Re: Plumbing question
« Reply #21 on: January 27, 2021, 02:56:11 PM »
Looks like a mix that includes copper carbonate and maybe Fe3O4, to the extent that it's possible to tell these things from a photo.

Have you tried the Firefox Spectroscope plugin?  ;)

I get distinct peaks at around 490, 580, and 640 nm.  :D

Offline LunarOrbit

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Re: Plumbing question
« Reply #22 on: January 30, 2021, 10:14:45 PM »
Here's the stuff. The view shows the top of the cap that is inside the tap.

BTW, it is lovely to see the stream of water from a freshly descale thingy.

It's not lead, I hope.
It suddenly struck me that that tiny pea, pretty and blue, was the Earth.
I put up my thumb and shut one eye, and my thumb blotted out the planet Earth.
I didn't feel like a giant. I felt very, very small.
- Neil Armstrong (1930-2012)