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Old 06-19-2009, 05:41 PM   #15
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When we encounter the situation that the pump won't prime at the kitchen faucet I go the head and hold the flush valve open until it pumps. Usually only takes well under a minute. Good luck.


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Old 06-29-2009, 05:08 PM   #16
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More for eMike to ponder:
  • I recently found that the simultaneous use of City water and pump solves the pulsing problem only intermittantly. At Tiger Run in Breckenridge (9600 feet), the pulsing was elongated to 20 seconds between pulses. The City water was at 40 p.s.i. (my hosehold-type regulator is set at 60 p.s.i.). The simultaneuos use in past experience, can eliminate the pulsing. (I need to start experimenting and documenting. How exciting!)
  • I have found that the pump does not really "vary" in speed. It just ramps up to full quickly (1 to 1.5 seconds) and then to off, repeatedly.
  • By running another faucet simultaneously, the pulsing stops. It seems the problem is with moderate demand. (Again, experimenting needed.)
Sorry for the incomplete analysis, but it's hard to type while hurtling down the road. I'll make it a point to delve deeper and post my results.

2003 Alpine 40FDTS (400HP)
Long Beach, CA
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Old 06-29-2009, 07:36 PM   #17
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Location: Auburn, CA, Havasu, AZ & Mulege, BCS
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TP- we have sea level, more or less, and now your 9600 feet. Make your next test at or above 14,000 feet and we should have enough of a sampling to run a regression curve and definitely get this puzzle figured out.

Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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