Peter_6605
Member
On Monday the fire department decided to exercise the fire hydrant outside my house. I am on the bottom of a hill and the last one in the cul-de-sac. Most of my neighbors are on well water so they did not get affected by the stupidity of the fire department. The fire department in their infinite wisdom closed the hydrant off so fast that it caused a hammer head effect that made its way all the way to my house. It destroyed my whole house filter and dumped water 1 inch deep in my shop. I have spent the last three days cleaning and lubricating my lathe, drill press and all my tools so they will not rust. So here are my questions that I need help with. I am trying to determine other than the whole house filter, what else did they damage in the water system. I checked the PRV and it appears to be working. I have it set at 50 lbs with the hose bib on and when I turn the house bib off it rises to 60 lbs.
Should it raise 10 lbs?
The expansion tank would be the next item. It is on my cold water line. I have the cold water shut off in the house, then the whole house filter, then the PRV, then the expansion tank. I checked the pressure in the expansion tank with the system down at zero pressure and it read 37lbs. I was told that it should be the same as the water pressure so I adjusted it up to 50 lbs which is my running pressure. After I turned the water back on I also rechecked the expansion tank pressure expecting it to increase to 60 lbs which is the pressure i the line when nothing is running. The tank was still at 50 lbs, This confused me so I let some air out. I dropped the air pressure all the way down to 40 lbs with 60lbs water pressure on the inlet side of the expansion tank. How can this be?
Is the expansion tank working?
And the final question has no answer - How to I prevent the fire department or city water department, who flushes hydrants, from destroying my plumbing system?
Should it raise 10 lbs?
The expansion tank would be the next item. It is on my cold water line. I have the cold water shut off in the house, then the whole house filter, then the PRV, then the expansion tank. I checked the pressure in the expansion tank with the system down at zero pressure and it read 37lbs. I was told that it should be the same as the water pressure so I adjusted it up to 50 lbs which is my running pressure. After I turned the water back on I also rechecked the expansion tank pressure expecting it to increase to 60 lbs which is the pressure i the line when nothing is running. The tank was still at 50 lbs, This confused me so I let some air out. I dropped the air pressure all the way down to 40 lbs with 60lbs water pressure on the inlet side of the expansion tank. How can this be?
Is the expansion tank working?
And the final question has no answer - How to I prevent the fire department or city water department, who flushes hydrants, from destroying my plumbing system?