replace 3/4" galvanized pipe

[Scott DP]

I need to replace 3/4" galvanized pipe from street to house and in dirt crawl space. I see NSF 100psi and 200psi flexible pipe available. Is the 100psi acceptable for residential? - about 1/2 the cost of 200psi.

Also, one supplier has 100psi which is rated to 140 degrees. Is that good enough for residential hot water?

Many thanks
Scott DP

[homebild]

International Residential Code 2003 section P2904.4 requires that all underground water service pipe have a "minimum working pressure rating of 160psi at 73 degrees F..."

Section P2904.5 requires that "all hot water distribution pipe and tubing shall have a minimum pressure rating of 100psi at 180F.."

You can use neither the 100psi water service pipe nor the 140F rated hot water pipe.