Installation of PVC pipe mains & service piping, it is common practice to place locator or detect tape or wire in the trench over the pipe. At what depth is it typically placed? I've seen it placed 12" below grade, marking pipe below, but can't reflect the true location of the pipe. If wire is...
Pump suction header, welded end caps are specified, (10" & 12" steel pipe) when modifying potable water pump station. Removing dead legs on header piping where abandoned pumps were removed, the use of Roust-a-bout couplings were suggested. Has anyone had any experience with these? Pump station...
I appreciate all the input and suggestions that have been presented. It has been good to mull over and consider the various comments. The path forward I have chosen indeed will remove and replace the weathered grout with new and will also examine the other grouted baseplates to determine at...
I have 5 miles of 70-yr old concrete cylinder pipe (CCP) that has reached its design life. It is a raw(river)water pipeline laid on a uniform grade with drain and air vent valves placed at low and high points. Hydraulic analysis indicates a 22"IPS (17.75 ID) will satisfy our need with the...
Recently I inspected several exterior steel column base plates with crumbling grout all around the top of the concrete foundation pedestal. Constructed over 50 years ago, the engineer specified a 2" thick grout cap covering the entire surface of the concrete pedestal,the base plate measuring...
