Well, I spoke a little too soon. I have 2 acres with irrigation water and a sprinkler system.
This consists of an underground sprinkler system and a 5 hp electric pump. It's good for about 150 gpm at 45 psi and 3 sprinkler zones. I installed the system about 35 years ago.
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Last year the pump shot craps. I ordered a similar pump at a cost of $1650.00. I installed it in the same system I had used before figuring a direct replacement should be no problem. Bad assumption! I was only able to get water a couple of time during the summer and I could never get the system to work properly. I got all kinds of crap from the wife about it not working. It would pump but with low pressure and low flow. Reading the instructions, the pump was supposed to be ready to go but re-reading the instructions, it looked like the pump was turning backwards. The instructions said it was already setup to go. It pumped but not right. A centrifugal pump wouldn't work turning backwards or would it? Searching the internet said it might. I reversed the direction and what do you know? It works.
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The only problem now was the pressure seemed a little low. I thought that may be because I changed the footvalve from a 2 1/2" to a 2". Good old Keene products. Further investigation lead me to water bubbling up from my driveway. It seems one of the sprinkler lines 2 1/2 feet deep froze last year.
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I'm still digging to find the extent of the problems. Digging at 70 years old isn't as easy as it used to be. I switched from highbanking to dredging because of that. Now even dredging is too much work.
Leonard