When the pipe thaws, the pump will run almost constantly. Watch your pressure gauge on the tank and if it will not rise, or has problem building pressure above 30 psi, then yo almost certainly have a broken pipe.
If you press your finger on the flesh and water pools in the indentation, it was frozen.
If it is a copper or metal pipe, tap the pipe gentle with a some thing metal (screw driver/small wrench ect...) If the pipe makes a echo sound it is empty, if the pipe has water in it, It will not echo. this also works with pro pain bottles and other metal objects
By looking at the check or globe valve
U tell me
You can tell if the roof vent pipe is clogged by watching for slow drains. If air is unable to help force water out of the system, the water will naturally want to remain in position.
Touch it and see what happens! You will probably not be allergic to snow or ice though as it is just frozen water!
Below the frost line of your area. Your local building code will tell you what the requirements are.
water in oil The smell of anti-freeze at the tail pipe (sweet, sickly smell)
witch pipe and will tell u :)
Pipe schedule systems were used until hydraulic calculations became the norm in the mid 80's. You can tell if the system is pipe scheduled when the piping sizes decreases as you get farther away from the water source (sprinkler riser). The larger mains will reduce as less branch lines and sprinkjlers are being supplied.
Highly sensitive listening gear while water flows through the pipe
if the knob is in line with the pipe it is on. if it is perpendicular to the pipe it is off. if the knob is made like the one on a water spigot with no indicator then all the way out is on and all the way in is closed.