Approximately 1/2 inch.
Any trees roots will only enter water or drain pipes where there is a break in the line. No tree roots will enter a secure pipe.
Diameter of water bubble?
Diameter of water fog:less dan or equal to 50um
No. It cannot enter because the lines are pressurised and any hole or crack in the line will exert more pressure outwards than the water can inwards. High pressure propane lines are self sealing because the gas is so cold upon leaving a crack, it will freeze to ice and be self sealing. Water can condense on the inside of a pipe just as any other surface and the gas companies have dryers to remove this moisture. Water can enter a natural gas distribution system (a pipe). Many older systems, particularly in the North Eastern US operate below 0.5 psig. If there is an opening in the pipe, water can overcome the operating pressure and enter the pipe.
The pure water surrounding the carrot has a higher water potential. A net gain of water will enter the plant cells, swelling the cells. Water will rise in the tube.
1- Increase the diameter 2- water jet the lines to scour them back to full flow as designed
If you have a caliper this is really easy. Corks are truncated cones. Measure the diameter of the cork at the top and at the bottom, average them, then calculate the volume using the average diameter.
Turn up the mains pressure or replace your water lines if you have galvanised piping, the internal diameter might have been reduced due to rust.
Only circles (or spheres) have a diameter
Try to mechanically restrict the supply line, by partially closing the closest valve to the fountain. If you do not have a valve and the supply lines are of a flexible tubing try clamping the hose to reduce the diameter.
th diameter of this is 7000 litres
Cold water lines may have more insulation than hot water lines, otherwise they should both freeze unless there is some agent in the water.