Thanks for the interesting report. Also on the old forum a member took scraping from white deposits left in the burner of his cooking stove,

In the outside environment I take samples from cracks and crevices of rain drain grates, very good at collecting and concentrating heavy particles, too small to see.

Geo

---

From: "taray singh via groups.io" <sukhjez@...>
To: [email protected]
Sent: Thursday, November 12, 2020 10:17:48 AM
Subject: [XRF] Xrf old faucet

Hi guys

I have done this before in the old forum

This time with better results?

My faucet spout has a??silvery shiny surface with some mottling.Blocked by water deposits due water stagnation.

But I have a confession to make

The faucet was??mounted on white rounded plaster holder at the base

Not in the path of the primary beam

The results show various elements?

Ni,Cu,Zn??,Pb and perhaps Fe

Ni is the??shiny outer coating?

Zinc is the faucet spout

Cu is coming from brass??within (Cu and Zn)

Pb from solder?

Fe if present from plates/escutcheon ?

Zn causing corrosion and??heavy deposits

This cheap Chinese Zn faucet is a bad choice?

Deposits are contributing too

That will be another topic
Taray

?

Glorious!

If you want to rent out the attic in the winter, give me a call.......

Geo

---

From: "Nick Andrews" <nickjandrews@...>
To: [email protected]
Sent: Thursday, November 12, 2020 11:24:39 AM
Subject: Re: [XRF] Xrf old faucet

Here is the case, sale at $19.99.

Yes, it's been interesting reading everyone's test reports!? I think I got one of your Cs calibrated soil samples a few years back.? I really do need to organize...

I was working on the 100 amp service into the shed yesterday and took some pics with my thermal imaging camera.? The corrugated steel outer skin (it's TX!), compared tot eh areas with sheathing and 3.5" of polyiso insulation installed, and then areas with the interior radiant barrier sheathing installed.? Very interesting.

On Thu, Nov 12, 2020 at 11:07 AM <GEOelectronics@...> wrote:

Very good Nick, meantime you can take advantage of our .mca files to familiarize yourself with the DPPMCA program/

Geo

---

From: "Nick Andrews" <nickjandrews@...>
To: [email protected]
Sent: Thursday, November 12, 2020 10:58:42 AM
Subject: Re: [XRF] Xrf old faucet

You guys are making me want to hurry up and get some projects done so I can play with my setup!

By the way, Home Depot right now has a padded foam travel case on special purchase for $19.99 that is the perfect size to carry/protect the Amptek unit, power supply, some exciters and misc calibration sources.

On Thu, Nov 12, 2020 at 10:35 AM taray singh via <sukhjez=[email protected]> wrote:

Another thing?

The plastic mount is a tape?reel with a?hole in the center

Perfect of samples to be placed on top

The pic of the tap is without the reel

It is just an object to help me take a pic shot

In case anyone is wondering..

Taray

On Friday, November 13, 2020, 12:25 AM, GEOelectronics@... wrote:

Thanks for the interesting report. Also on the old forum a member took scraping from white deposits left in the burner of his cooking stove,

In the outside environment I take samples from cracks and crevices of rain drain grates, very good at collecting and concentrating heavy particles, too small to see.

Geo

---

From: "taray singh via " <sukhjez=[email protected]>
To: [email protected]
Sent: Thursday, November 12, 2020 10:17:48 AM
Subject: [XRF] Xrf old faucet

Hi guys

I have done this before in the old forum

This time with better results?

My faucet spout has a??silvery shiny surface with some mottling.Blocked by water deposits due water stagnation.

But I have a confession to make

The faucet was??mounted on white rounded plaster holder at the base

Not in the path of the primary beam

The results show various elements?

Ni,Cu,Zn??,Pb and perhaps Fe

Ni is the??shiny outer coating?

Zinc is the faucet spout

Cu is coming from brass??within (Cu and Zn)

Pb from solder?

Fe if present from plates/escutcheon ?

Zn causing corrosion and??heavy deposits

This cheap Chinese Zn faucet is a bad choice?

Deposits are contributing too

That will be another topic
Taray

?

?

First being shown is Taray's "Tap sediment end.mca) loaded into live_data_2 and showing as? solid red
peaks

with the "Tap brass.mca" loaded in live_data_1 with its peaks showing as black outlines. If the user wished to see only one set of peaks, the other ones would have been set to H for HIDE instead of left with no letter in the front. If set up that way, you can animate them back and forth with keystrokes. Sometimes overlaying the peaks is too busy to be effective.


I've highlighted different peaks, especially the Pb Ka1. It will be clearer in the second picture what a big difference there is at 10.55kev between the scans. To me this would definitely raise a red flag for Pb but at this stage is not definite enough to call it 100%. Further testing would be merited and could swing it one way or the other.

All colors are set by the user as is their intensity (# of pixels)

Notice at the top of the display it is showing the name of the active .mca file. When we change the other file to being active instead, this will change to that file name.




Now the same two scans, but switched with the outline becoming solid red and vise versa.

To me the 10.55keV difference is much clearer in this setting. Close but about half a channel off Pb

.



However below see how we can expand down to 1 keV full width (less is possible, and this scan was taken with only 2048 channels, we can do up to 8k channels for even better resolution but longer scan time).
1 keV = 1000 electron-volts. Look how many individual peaks can be inside a single keV.







Have fun?
Geo

First being shown is Taray's "Tap sediment end.mca) loaded into live_data_2 and showing as? solid red
peaks

with the "Tap brass.mca" loaded in live_data_1 with its peaks showing as black outlines. If the user wished to see only one set of peaks, the other ones would have been set to H for HIDE instead of left with no letter in the front. If set up that way, you can animate them back and forth with keystrokes. Sometimes overlaying the peaks is too busy to be effective.


I've highlighted different peaks, especially the Pb Ka1. It will be clearer in the second picture what a big difference there is at 10.55kev between the scans. To me this would definitely raise a red flag for Pb but at this stage is not definite enough to call it 100%. Further testing would be merited and could swing it one way or the other.

All colors are set by the user as is their intensity (# of pixels)

Notice at the top of the display it is showing the name of the active .mca file. When we change the other file to being active instead, this will change to that file name.




Now the same two scans, but switched with the outline becoming solid red and vise versa.

To me the 10.55keV difference is much clearer in this setting. Close but about half a channel off Pb

.



However below see how we can expand down to 1 keV full width (less is possible, and this scan was taken with only 2048 channels, we can do up to 8k channels for even better resolution but longer scan time).
1 keV = 1000 electron-volts. Look how many individual peaks can be inside a single keV.







Have fun?
Geo

I collected first flush from unused faucets and a reddish brown sludge was subsequently??added??to used coffee ground .?

Soaked overnight?

Excess water drained out and coffee put to dry in the sun

Subsequently repacked in thin kitchen plastic and scanned overnight?

Xrf findings show Fe,Ni ,Zn and lead?

A test of shorter duration??of clean used coffee show weaker peaks??somewhat similar.

Putting together the old faucet structure and this finding makes me arrive to a certain conclusion?

Zinc faucets a potent corrosive agents

The stagnant water in the faucet and??the proximal plumbing system is accounting for a build up of heavy metals?

If left alone it will eventually cause total blockage like what happened??to this faucet?

This coffee ground is all also a reflection??of the state of the water used at the primary source??and the actual brewing process where heating elements leached

metals into the coffee

This coffee ground came from hospital lounge?

Apparently all drinking water there is prefiltered

So far nobody I contacted including??the technicians could tell me the nature of the heating elements used in my??coffee maker?

Ni ,Cr,Al or steel are common heating coils.

The coffee beans have some natural elements present excluding any poor irrigation??system at the plantations.

I have to do test on clean coffee beans and a another for the used coffee ground to get a clear picture of my faucet findings.

But putting all the pieces together does suggest my tap water water contain measurable heavy??metals?

Pics are coffee ground residue??/clean coffee 4096 mca?

I think I will take a coffee break??for now

Taray

On Monday, November 16, 2020, 2:22 AM, GEOelectronics@... <GEOelectronics@...> wrote:

First being shown is Taray's "Tap sediment end.mca) loaded into live_data_2 and showing as? solid red
peaks

with the "Tap brass.mca" loaded in live_data_1 with its peaks showing as black outlines. If the user wished to see only one set of peaks, the other ones would have been set to H for HIDE instead of left with no letter in the front. If set up that way, you can animate them back and forth with keystrokes. Sometimes overlaying the peaks is too busy to be effective.


I've highlighted different peaks, especially the Pb Ka1. It will be clearer in the second picture what a big difference there is at 10.55kev between the scans. To me this would definitely raise a red flag for Pb but at this stage is not definite enough to call it 100%. Further testing would be merited and could swing it one way or the other.

All colors are set by the user as is their intensity (# of pixels)

Notice at the top of the display it is showing the name of the active .mca file. When we change the other file to being active instead, this will change to that file name.




Now the same two scans, but switched with the outline becoming solid red and vise versa.

To me the 10.55keV difference is much clearer in this setting. Close but about half a channel off Pb

.



However below see how we can expand down to 1 keV full width (less is possible, and this scan was taken with only 2048 channels, we can do up to 8k channels for even better resolution but longer scan time).
1 keV = 1000 electron-volts. Look how many individual peaks can be inside a single keV.







Have fun?
Geo