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This is the hottest I have ever measured tap water. 152 F.

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That's a really inaccurate way to measure water temperature.

And a better way is...?

Thermocouple. You can buy them as accessories to plug into your multimeter. I ditched my IR thermometer several years ago in favor of a thermocouple accessory for that reason.

Marc

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I test water temp with my hand. If I can't hold it under the tap for more than 1 or 2 seconds it's too hot. The laser thermometer is mostly eye candy like my cheap thermal imaging camera. It shows a picture of what I already know. The accurate temp is not important to me.

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I test water temp with my hand. If I can't hold it under the tap for more than 1 or 2 seconds it's too hot.

Your chart shows a third degree burn can occur in 1-2 seconds if water temps are between 148 and 155 degrees. I'd never risk testing water temps that way.

If I were you I wouldn't risk it either. The elderly and young children have a much slower reaction time.

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I test water temp with my hand. If I can't hold it under the tap for more than 1 or 2 seconds it's too hot.

Your chart shows a third degree burn can occur in 1-2 seconds if water temps are between 148 and 155 degrees. I'd never risk testing water temps that way.

If I were you I wouldn't risk it either. The elderly and young children have a much slower reaction time.

Stupid is as stupid does. . .

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I test water temp with my hand. If I can't hold it under the tap for more than 1 or 2 seconds it's too hot.

Your chart shows a third degree burn can occur in 1-2 seconds if water temps are between 148 and 155 degrees. I'd never risk testing water temps that way.

If I were you I wouldn't risk it either. The elderly and young children have a much slower reaction time.

Water that hot makes steam. Don't need to touch it, just look. Lotsa stuff we find just by looking.

Marc

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And a better way is...?

An HVAC thermometer. Attach it to a small spring clamp. Let the water run while you do other stuff and glance at it every now and then. Not only will this allow you to see the peak temperature, but you will also see the temperature curve - making is really easy to spot broken dip tubes.

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I test water temp with my hand. If I can't hold it under the tap for more than 1 or 2 seconds it's too hot.

Your chart shows a third degree burn can occur in 1-2 seconds if water temps are between 148 and 155 degrees. I'd never risk testing water temps that way.

If I were you I wouldn't risk it either. The elderly and young children have a much slower reaction time.

[:-thumbu]
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I assume clunking from the tank is another sign of a broken dip tube or sacrificial anode.

Dip tubes and anodes don't make any noise. The clunking happens when minerals build up in the tank and form scale. The scale holds small pockets of water at the bottom of the tank where they heat up really fast and actually boil. You're hearing the water turn into bubbles of steam.

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