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Conference unifix::sailing

Title:SAILING
Notice:Please read Note 2.* before participating in this conference
Moderator:UNIFIX::BERENS
Created:Wed Jul 01 1992
Last Modified:Mon Jun 02 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2299
Total number of notes:20724

1339.0. "Shower Power" by USEM::FERGUSON () Wed Sep 06 1989 22:51

    Tempermental H\C water pump does not like anything but the freshest
    electricity and can't stand to be cooped up in a small unventilated
    space. I have added a small 12v fan to cool it. This helped but
    not good enough for 100% reliability. 
    
    Has anyone replaced their pump and been very happy with the results?

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1339.1nuts to electric FW pumpsVLNVAX::FRENIEREThu Sep 07 1989 13:0010
    After three years of fighting with the Par pumps, I'm going to
    install the Whale foot pump for next year. I'm tired of killing
    batteries because the pressure sensing  method used. As soon as the
    pressure drops a bit, the motor takes a shot and the current draw is
    very high, heating the motor and sucking up battery juices. In
    desperation, I added switches by the two sinks, so I'm back to a manual
    system anyhow......, that is after one burn't out motor and two
    batteries...
    Don

1339.2As simpler as betterKBOMFG::LOESTFri Sep 08 1989 05:3713
    I have been fighting the last eight years with the water pumps on
    charter boats. Always told the crew switch it of when you don't
    need it, they never did and guess what happend battery empty....
    run out of water because of leakages (pretty bad down in Greece
    because difficult to get). This year I had a boat with footpump and
    
     			IT WORKED GREAT
    
    Other thaught I always fight for on a boat, as less tech you have on 
    a boat as less can fail and need repair.
    
    Klaus

1339.3Try a pressure tankRAINBO::BURRFri Sep 08 1989 16:2612
    I use a Par pressure pump (diaphragm type) coupled with a separate
    pressure tank.  With this setup, I have about 30 psi of pressure water
    and have had no problems with either excessive battery drain or pump
    reliability.  I had to install this sort of system on the boat when I
    decided to go to a pressure actuated gas fired hot water heater rather
    than a engine based heat exchanger.  It's great to get up in the
    morning and be able to take a HOT shower without running the engine. 
    If you have a separate pressure tank, you will find that the pump will
    only run for very short bursts every 5-10 seconds when the water is
    turned on and will maintain pressure indefinately when water is no
    flowing.

1339.4USEM::FERGUSONThu Sep 14 1989 12:0919
    I have an accumulator tank with an adjustable on/off pressure limit
    setting. This switch has points like an automobile ignition which
    are worn but don't seem to be a problem. 
    
    When the switch calls for the pump to work , the curcuit breaker
    trips after a half minute many times. The specs on the pump say
    it draws 16 amps to start 12 to run and the breaker is 20 amps.
    
    With the engine running and the 12v fan on there is a higher level
    of success. More power available? 
    
    I"ve been looking in the catalogs and find the big Par diaphragm
    type and shurflo parmate types. I wonder when repair kits are listed
    immediately afer each diaphragm listing. Any advice?
    
    I missed the issue of PS that covered these pumps.
    
    Thanks Bill

1339.5accumulator and gas-fired heatersWJO::SCHLEGELMon Sep 18 1989 18:018
    RE: 1339.3
    Can you tell me more about your gas fired hot water heater? My little
    atomic 4 is so efficient, it takes a long time for me to heat up hot
    water!  Also, what is the approximate size of your pressure tank?  My
    direct pump has worked flawlessly for 10 years, but I would like to
    avoid the pump coming on every time we use water.
    

1339.610 year wonderUSEM::FERGUSONTue Sep 19 1989 17:383
    Could you tell me what type of pump and which mfg made your 10 year
    pump?

1339.7Pump MfrWJO::SCHLEGELMon Oct 02 1989 15:053
    As soon as I get back aboard. Been awfully busy..
    

1339.8Practical Sailor says....NETMAN::CARTERMon Oct 02 1989 15:368
    Practical Sailor has an extensive write-up on pressure pumps for water
    systems in the latest edition.
      
    Just in time, too.  I'm planning to put in pressure water during the off 
    season.                       
    
    djc