TPR tapped into cold

[Thomas Jansson]

So the valve on the tank that looks like an ordinary TPR is an ordinary TPR, and the thingus that looks like a T-fitting on the cold line (upper right) is a watts valve?

[Harold E. Miller]

Bingo...that is correct. I had to look at the picture again. At the top I thought that was a copper fitting....but it is the watts valve that was referred to. Now I understand the configuration, and as far as I know that is acceptable. I would not call that.

[Michael W. Gault]

Ahh, so the thing in the circle is the watts valve... more better now

[Michael Larson]

Originally Posted by mgault

Ahh, so the thing in the circle is the watts valve... more better now

Been busy today but you got it Mike.
There is no test lever on the watts device. The top of the fitting is where the spring and valve are (it is not open to air).
When the pressue gets to the devices set point the spring compresses and the valve opens reliving the excess pressure into the TPR drain line.
I hope that's clear fellas.

[cwillick1]

interesting setup. if the watts valve fails do you run the risk of your tank running low and burning up elements

[Jason1]

Originally Posted by cwillick1

interesting setup. if the watts valve fails do you run the risk of your tank running low and burning up elements

From experience, no. It develops a slow leak and you will be able to see the mineral deposits around it - time to replace.

[Michael Larson]

Originally Posted by cwillick1

interesting setup. if the watts valve fails do you run the risk of your tank running low and burning up elements

No you don't