Qod 12-2-08

[Rick K. Kie]

60 PSI is an average range for a public water supply if it is higher than that you should install a pressure reducing valve on the line. I have seen it over 90 psi

[Brian E. Kelly]

No real need for a regulator until 80 psi

[John A. Sopher]

I used the following statement to answer the QOD.

"Where the water pressure exceeds 80 or 100 psi (depending on your jurisdiction) pressure regulators may be required to limit the house supply pressure to 80 psi."

Principles of Home Inspections
Systems & Standards
Dearborn Home Inspection
page 788
First sentence of the first paragraph of Excess Pressure within the section of Supply Piping Distribute System in the House.

No mention of any specific low rang pressure is ever mentioned in this book. 80 psi is the limit around here and thus my answer is 80 psi.

[Brian E. Kelly]

Originally Posted by jsopher

I used the following statement to answer the QOD.

"Where the water pressure exceeds 80 or 100 psi (depending on your jurisdiction) pressure regulators may be required to limit the house supply pressure to 80 psi."

Principles of Home Inspections
Systems & Standards
Dearborn Home Inspection
page 788
First sentence of the first paragraph of Excess Pressure within the section of Supply Piping Distribute System in the House.

No mention of any specific low rang pressure is ever mentioned in this book. 80 psi is the limit around here and thus my answer is 80 psi.

The city is required to supply at least 40 psi per national codes. The city really could care less if they supply over 80 psi water pressure to a house. The house builder should regulate the pressure to less than 80 psi.

Hence the way the question was worded to get the discussion going and get people thinking.

[Christopher Currins]

Originally Posted by bkelly2

The city is required to supply at least 40 psi per national codes. The city really could care less if they supply over 80 psi water pressure to a house. The house builder should regulate the pressure to less than 80 psi.

Hence the way the question was worded to get the discussion going and get people thinking.

You tricky devil.

[John A. Sopher]

Ahhhh Haaaa I'm still da grasshopppa. lol