I have a well with submersible pump (1/2 HP, about 60 feet of lift). The pipe from the well enters my garage, where my well tank is. The pipe at the pump is 1 1/4", and it is 1" PE pipe from the pitless adapter to the tank. A few years ago I moved the tank to another corner of the garage (warmer and out of the way). The 1" PE pipe at the original tank location now has a sharp elbow fitting (1") and an adapter/reducer to the 3/4" PEX I used for the new extended run to the tank. It is about 30 total feet of 3/4" PEX and I curved the pipe for all turns rather than use fittings.
We don't have any problems with the water in the house. Pressure and volume are fine at all our fixtures. But I wonder if the more restrictive piping to my well tank will cause my pump to work harder (against more pressure), run longer (because the fill is slower), and die sooner.
Other:
- The tech info for my well pump says it should put out 10.9 GPM at 60', 9.6 GPM at 80', 8.1 GPM at 100'
- My well tank should probably be larger. It is a Well-X-Troll WX-202 and has a 5.4 gallon drawdown (at 40-60 PSI).
- My well tank now refills in 29 seconds, so my pump is putting 11 GPM into the tank, which seems to be in line with the output predicted by the pump literature.
Most of what I've read indicates that "big" pipe/tubing (1" or 1 1/4") should run all the way to the pressure tank. Other folks (who know a lot more than I do) say that too little head pressure can cause the pump to overspeed and draw too much current, and they deliberately neck the pipe down from 1.25" to 1" to prevent this. By that reasoning, maybe me 3/4" PEX is okay.
Two questions:
1) Am I alright with my present setup, or should I run 1" PE or PEX all the way to the pressure tank?
2) Would you replace the (functional) pressure tank with a bigger one? 29 seconds of fill time seems pretty short, but my last well pump did survive 11 years.
Thanks a lot for any input/suggestions.
Mark
We don't have any problems with the water in the house. Pressure and volume are fine at all our fixtures. But I wonder if the more restrictive piping to my well tank will cause my pump to work harder (against more pressure), run longer (because the fill is slower), and die sooner.
Other:
- The tech info for my well pump says it should put out 10.9 GPM at 60', 9.6 GPM at 80', 8.1 GPM at 100'
- My well tank should probably be larger. It is a Well-X-Troll WX-202 and has a 5.4 gallon drawdown (at 40-60 PSI).
- My well tank now refills in 29 seconds, so my pump is putting 11 GPM into the tank, which seems to be in line with the output predicted by the pump literature.
Most of what I've read indicates that "big" pipe/tubing (1" or 1 1/4") should run all the way to the pressure tank. Other folks (who know a lot more than I do) say that too little head pressure can cause the pump to overspeed and draw too much current, and they deliberately neck the pipe down from 1.25" to 1" to prevent this. By that reasoning, maybe me 3/4" PEX is okay.
Two questions:
1) Am I alright with my present setup, or should I run 1" PE or PEX all the way to the pressure tank?
2) Would you replace the (functional) pressure tank with a bigger one? 29 seconds of fill time seems pretty short, but my last well pump did survive 11 years.
Thanks a lot for any input/suggestions.
Mark