February 14, 2018
Thanks for the help buddy.
April 6, 2015
Correct me if I am wrong but I believe you are working with the Uniform Plumbing Code.
You are looking at Table 610.4 and seeing the column labeled METER AND STREET SERVICE. Then, seeing that there is no entry that is less than 3/4 inch and realizing that the meter is only 5/8 inch, what does one do?
I'm looking at the 2015 UPC and it says that you can use an alternate method for sizing per Section 610.5...you could go to Appendix A and do the system sizing in that manner.
Or, possibly, you could try to figure out how much more pressure loss a 5/8 inch meter causes as compared to the 3/4 inch meter (for the building flow rate) and then subtract that extra pressure loss from the available public main pressure you started with. In Table 610.4, that might put you into a different pressure "block" or it simply might require you to jump up to the next pipe size. Or might might not require anything different than what you currently have arrived at.
December 1, 2017
Has anyone out there had any experience with using a 5/8" residential water service meter for a 3/4" application? Specifically, our city has been installing 5/8" meters for years due to the accuracy of the smaller size. Of course, the code references only go down to a 3/4" service for flow and fixture count calculations but with a "restriction" in the line, how can we consider it a 3/4" service and do accurate calculations? The main to the meter is at least 3/4", the meter setter is 5/8", and from the meter to the residence is usually 1" due to horizontal distances.
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