Roomba, Dysons, Thermomix and other household appliances

[Lynda2475]

So about 4 days ago my 23 year old Fridge has started making a very loud humming noise methinks it is on its last legs. Hope all the usual suspects are having appliance sales on easter long weekend.

 

[Lynda2475]

Does anyone own one of those ultrasonic jewellery cleaners and do they work or is it a scam?

 

[Denali]

I have one, paid about $200-$275 by memory and it does work.

 

[TheRealTMA]

Does anyone own one of those ultrasonic jewellery cleaners and do they work or is it a scam?

Yes. Yes. No.

 

[mrs.dr.ron]

Yes. Yes. No.

I use a baby tooth brush and some toothpaste and my jewellery comes up just fine, sparkly and clean. I do it about twice a year.

 

[Pushka]

I use a baby tooth brush and some toothpaste and my jewellery comes up just fine, sparkly and clean. I do it about twice a year.

Just last night I used the alfoil, bicarb soda, hot water, detergent and salt immersion. Works well.

 

[Daver6]

I have one, paid about $200-$275 by memory and it does work.

What does an expensive one like that do over a $50 one from Amazon?

 

[daft009]

Just cleaned all my watches in my $30 ALDI ultrasonic cleaner last weekend.
Came out heaps cleaner

 

[zig]

Just cleaned all my watches in my $30 ALDI ultrasonic cleaner last weekend.
Came out heaps cleaner

I have the ALDI unit and think it does a reasonable job. I'm not sure if a more expensive one does a better job or not, but for the price paid I'm happy with it's performance.

 

[TheRealTMA]

Just last night I used the alfoil, bicarb soda, hot water, detergent and salt immersion. Works well.

Try hydrochloric and nitric acid combined!

 

[leadman]

Not a great mixture for those who don't know about acids and, as a metallurgist, strongly suggest not one to be mixing at home. The result is Aqua Regia which dissolves gold, so you may have no jewellery left depending upon the strength. And, if you mix them the wrong way, you can produce chlorine gas. Nasty stuff and should only be used in a fume hood.

Try hydrochloric and nitric acid combined!

 

[TheRealTMA]

Not a great mixture for those who don't know about acids and, as a metallurgist, strongly suggest not one to be mixing at home. The result is Aqua Regia which dissolves gold, so you may have no jewellery left depending upon the strength. And, if you mix them the wrong way, you can produce chlorine gas. Nasty stuff and should only be used in a fume hood.

Yes I know. Was a facetious remark given the nonsense combination already used instead of a nondestructive ultrasound device.

 

[Pushka]

Try hydrochloric and nitric acid combined!

My method worked nicely Thankyou.

Post automatically merged: Jun 1, 2024

Yes I know. Was a facetious remark given the nonsense combination already used instead of a nondestructive ultrasound device.

So you've never tried it then.

 

[prozac]

Try hydrochloric and nitric acid combined!

Works about as well as putting them in the hubcaps of your car and driving around a bit.

 

[TheRealTMA]

Works about as well as putting them in the hubcaps of your car and driving around a bit.

Well no. My combination removes any need for future cleaning!

And who has hubcaps anymore?

 

[prozac]

Well no. My combination removes any need for future cleaning!

And who has hubcaps anymore?

I suppose next you gunna say nobody got guns no more neither?

 

[Buzzard]

Well no. My combination removes any need for future cleaning!

And who has hubcaps anymore?

I see lots of cars with hubcaps.
+1's car even has 4 of them.

 

[TheRealTMA]

I see lots of cars with hubcaps.
+1's car even has 4 of them.

Haven’t had a car with them for 30 years.

Better check them for guns and jewellery.

 

[n7of9]

I had to buy a new microwave today, it has a button to permanently turn off all the beeps. IT HAS A BUTTON TO PERMANENTLY TURN OFF ALL THE BEEPS! I am so happy

 

[leadman]

Yes I know. Was a facetious remark given the nonsense combination already used instead of a nondestructive ultrasound device.

The "nonsense combination" is actually a basic electrolytic reaction; for silver, the black tarnish (Ag2S) is converted back to silver and Al2S3 formed. Hot water increases reaction times and the salts increase pH and ion transfer. Ultrasound only cleans and doesn't remove sulphides/oxides.