Hello out there in the land of plumbing. I am not a plumber but I am becoming pretty educated and this appears to be the place to ask questions to those in the know.
My question is this, I have a deep well / jet pump. I have recently updated the preassure tank to a more modern bladder type. Over the summer I replaced the pump due to the old one acting up and it was so coroded it was unserviceable.
When I intalled the new pressure tank I replaced all the fittings and tried to do it "right". So I have the pump discharging via .75 poly pipe line to a ball valve, to a check valve, to the bladder tank, another ball vavle, discharging via .75 poly to the house. This a verbal flow patter in you will.
After doing all of this I noticed that the pump kept kicking in , a surge type kick in for about two -three cycles of the motor and off. After reading all the info I could come up with and performing many of the checks that have been suggested it appears that there is a problem with the foot valve. So I pull the pump and line and find half of a coroded foot valve and jet assembly. I replace these and reinsert into the well. I plumb everthing back up and sure enough it is still doing this. So I pull it back up making sure not to let the water in the lines drain out on the ground. I run the pump while it is top side and see that there are two small leaves at the fittings. I tighten everthing back up and do this again. It is much better but it still has two drips, about a drop every 5 seconds. It is getting dark out so I put it back in the well and it is still doing this surging. I have read about everything I can think of and I have theorized about this for the last two days. I went back out and investigated a little more. I have a preasure gauge mounted on top of the well pump jet body and a gauge at the preassure tank discharge "T". When the water is running in the house, the preasure at the tank drops about 5-7 PSI before the pump kicks on. THis drop in preassure at the tank equals about 2 PSI at the well pump gauge. So I turn the ball valve before the tank and watch the gauge at the pump and it is dropping about 2PSI about every 1-2 minutes, I figure this is about my drip factor I saw before putting the pump back. What I am having a hard time understanding is the effect of the check valve between the preassure tank and the well pump. If the check valve was not there would the preasure tank do some degree of compensation for my small leak at the foot valve, and when the pump did come on it would in effect be cycling as if the preassure tank had been emptied which would make the pump cycle normal and not surge as it is now.
I apologize for the length of this but I wanted to try and be detailed and provide my thought process.
Thank you,
Brian
My question is this, I have a deep well / jet pump. I have recently updated the preassure tank to a more modern bladder type. Over the summer I replaced the pump due to the old one acting up and it was so coroded it was unserviceable.
When I intalled the new pressure tank I replaced all the fittings and tried to do it "right". So I have the pump discharging via .75 poly pipe line to a ball valve, to a check valve, to the bladder tank, another ball vavle, discharging via .75 poly to the house. This a verbal flow patter in you will.
After doing all of this I noticed that the pump kept kicking in , a surge type kick in for about two -three cycles of the motor and off. After reading all the info I could come up with and performing many of the checks that have been suggested it appears that there is a problem with the foot valve. So I pull the pump and line and find half of a coroded foot valve and jet assembly. I replace these and reinsert into the well. I plumb everthing back up and sure enough it is still doing this. So I pull it back up making sure not to let the water in the lines drain out on the ground. I run the pump while it is top side and see that there are two small leaves at the fittings. I tighten everthing back up and do this again. It is much better but it still has two drips, about a drop every 5 seconds. It is getting dark out so I put it back in the well and it is still doing this surging. I have read about everything I can think of and I have theorized about this for the last two days. I went back out and investigated a little more. I have a preasure gauge mounted on top of the well pump jet body and a gauge at the preassure tank discharge "T". When the water is running in the house, the preasure at the tank drops about 5-7 PSI before the pump kicks on. THis drop in preassure at the tank equals about 2 PSI at the well pump gauge. So I turn the ball valve before the tank and watch the gauge at the pump and it is dropping about 2PSI about every 1-2 minutes, I figure this is about my drip factor I saw before putting the pump back. What I am having a hard time understanding is the effect of the check valve between the preassure tank and the well pump. If the check valve was not there would the preasure tank do some degree of compensation for my small leak at the foot valve, and when the pump did come on it would in effect be cycling as if the preassure tank had been emptied which would make the pump cycle normal and not surge as it is now.
I apologize for the length of this but I wanted to try and be detailed and provide my thought process.
Thank you,
Brian
