OK ............. I have a question or two, but I do not want to make this a long thread. So, just in case anyone wants to see more information from the past, click on the following link; otherwise skip on down to my new comments:
In an effort to make this as brief as possible, I will only make brief statements:
1- For the past couple of years I have suspected something was "brewing". I did learn that our well's water table has dropped somewhat and I have been monitoring the level closely with the aid of a high resolution pressure gauge and 1/4" tubing run down into the well.
2- Last year, being the worst and dryest, I found the water level was dropping to a level which only left the pump submerged about 18 inches. I do have dry well protection, but to the best of my knoweledge, it doesn't appear the pump ever ran dry.
3- Last year I had complained that each sprinkler zone was running about 5 PSI lower than the previous year. So, I was wondering if our pump may be failing. Most agreed the drop in water level caused the lower pressure.
4- This year it is not as dry and things are looking better. Our pump is consistently staying submerged under about 9 FOOT of water as opposed to last years 18 INCHES. I have been checking this daily!!! However, each sprinkler zone's pressure has dropped another 4 PSI this year. That's a total of a 9 PSI drop in two years!
5- So, I was confused .............. water table has increased and staying steady, but yet another 4 PSI drop in pressure????
6- About a week ago I put all new nozzles on one of the sprinkler zones. This did not help the pressure for that zone at all. So, that proved it wasn't worn nozzles!
7- So, I kept wondering if this was a sign of a failing pump
8- Today, I noticed the water would not cut on. The breaker was not tripped; the contacts at the pressure switch were closed; 240 VAC was at the control box.
9- I removed the cover to the control box and ALL resistance values to the pump were within the specified value. I replaced the control box cover and the pump began running ............. however, I noticed the water volume was not normal and the pressure gauge was fluctuating somewhat. Shortly thereafter, the pump quit running.
10- I removed the control box cover, did a few more checks and then replaced the cover. Once again, the pump did the same as before ..... but, I was able to get an amp draw reading this time. The amp draw began at about 10 amps; and just before the pump tripped itself out again, the amp draw increased to 19 amps. This particular pump generally ran at about 8.5 amps.
11- So, I'm thinking the pump motor is OK. However, the pumping part is dead.
* The entire pump needs to be replaced. It is 18 years old. Everyone agree?
* Most importantly, I believe this dying pump has been the reason I have seen a decrease in pressure for the past two years. Replacing the pump will most likely return my sprinkler zone pressures to a normal state. Everyone agree?
Thanks so much!