Water Lesson Learned: Don’t Put Off Today….

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  • Sun, Oct 24, 2010 - 03:13pm

    #21
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    Re: Water Lesson Learned: Don’t Put Off Today….

Nickbert,

I worked in Barrow a few years back. They had an above ground water tank that was about 40′ in diameter and maybe 20′ tall. I was told the ice only forms so deep and the rest stays liquid. Barrow had no river to draw from. Other places in N. Alaska pumped water from the rivers year round even though the ice was 5 to 6 feet thick.

I use 2-55 gal drums and 1/2 sheet of 3/4″ plywood for greenhouse tables; I have 5 tables, also for back up there is a 305 gal water tank. Water is very important to me.

LG

 

 

  • Thu, Oct 28, 2010 - 04:11am

    #22
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    Re: Water Lesson Learned: Don’t Put Off Today….

Great story, Davos.  It’s comforting to learn that there are others who don’t always move as fast on our “to do” list as we would like to.  Now  I don’t feel so much like the Lone Ranger.

I am currently dealing with an electrical problem that perhaps someone on this forum could help me with:

I have been concerned about power back up for the 270 foot deep well that we installed a year ago.  We had a 17 foot sand point that ran off a 120 volt pump that I could power with a small generator when we experienced power outages.  Unfortunately, that well was not able to keep up with our requirements, hence the new deep well.    The new well pump is 240V, so the small generator will not drive new well pump.

I’m thinking about getting an inverter, powered by deep cycle batteries which are charged by a charger connected to the grid.  Eventually will charge the batteries with PV panels.   My challenge is to get an inverter with enough capacity to run the pump.  The pump manufacturer says the pump requires 2.5 KVA.  (kilovolt amps).   Can anyone tell me what that means in terms of wattage?  Thanks in advance for any help!

 

 

 

  • Thu, Oct 28, 2010 - 07:26am

    #23
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    Re: Water Lesson Learned: Don’t Put Off Today….

For purposes of sizing your backup power source, you can roughly equate a volt-amp to a watt.  You will need at least 2500 watts provided that is enough for the initial pump startup power versus the running power. Your cheapest and fastest to implement is to just upgrade your generator to one that has a 240 volt output. A quick google search yielded this one for ~ $400 – http://www.generatorfactoryoutlet.com/gfo/products/XP4400E.asp  It is a 3500 watt rated load with a 240 volt output.

A battery backup solar setup will cost a minimum of $5K and you won’t pump much water at 2,500 watts before the batteries are drained. My RV has ~500 watts of solar panels charging 4 – 6 volt deep cycle batteries which feed a 2500 watt inverter. Just running a microwave drains the batteries in a hurry. You can upgrade your generator and store a lot of fuel (if you are in a rural area) for the difference in cost. Propane fuel is the easiest to store long term, followed by diesel, and then gasoline.

My main water well has a 240 volt, 1 HP (746 watt) pump and my whole house backup power of choice is a 5500 watt propane generator with 2 – 1000 gallon propane tanks.

[quote=osb272646]

I have been concerned about power back up for the 270 foot deep well that we installed a year ago.  We had a 17 foot sand point that ran off a 120 volt pump that I could power with a small generator when we experienced power outages.  Unfortunately, that well was not able to keep up with our requirements, hence the new deep well.    The new well pump is 240V, so the small generator will not drive new well pump.

I’m thinking about getting an inverter, powered by deep cycle batteries which are charged by a charger connected to the grid.  Eventually will charge the batteries with PV panels.   My challenge is to get an inverter with enough capacity to run the pump.  The pump manufacturer says the pump requires 2.5 KVA.  (kilovolt amps).   Can anyone tell me what that means in terms of wattage?  Thanks in advance for any help!

 

 

 

[/quote]

  • Thu, Oct 28, 2010 - 12:42pm

    #24
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    Re: Water Lesson Learned: Don’t Put Off Today….

Thanks, DRS78750, for your response.  I like your suggestion of upgrading the generator.  That would allow me to test my approach before dumping money into an inverter that could turn out to be inadequate.  

I agree that the batteries will drain fast with a 2.5kw draw.  A couple of cheapo 12v deep cycles from Walmart would provide about 100 amp hours of 12volt if they’re only cycled down to 50% of capacity, or about 10 amp hours of 120 volt.  I’m not sure what that means for 240v.  But, when we get a power outage, we cut way back from our already frugal water usage habits.  I doubt the pump would cycle more than 3-4 times (maybe less) in a 24 hour period when we’re in our “power outage” mode.  My thinking is to get a small Honda generator, quiet and fuel efficient, to recharge the batteries between pump cycles, or a couple of solar panels with the Honda generator as backup.  Once this setup is the way I want it, I could add onto the panels and batteries to provide emergency power to other things like a light bulb or two, and the fridge.

I also have a motorhome, with a couple of Kyocera 120’s on the roof.  I use two cheapo 12v deep cycles for storage.  This set up allows my wife and me to stay as long as we want out in the deserts of Arizona and Mexico, as far as electrical needs go.  I had four Trojan T109 six volt batteries, but found that they got a “memory” because we didn’t discharge them enough each day, thus became useless.  It seems to me that you have to exercise batteries down to at least 75% before recharging them to 100%.  Otherwise they get a memory and then operate only off the top 10% of their capacity. 

My hunting cabin is off grid; we use a single 12V Walmart deep cycle to pump water from the 100 gallon holding tank, take showers, run the lights, and play movies on the DVD.  The 6 gal. RV water heater, blue flame heater and stove are run off 20 pounder LP tanks.  (Yes, we’ve gone soft in our old age.  But that’s a different story.)  Over a typical 5-6 day hunting season, that battery gets hit hard, being taken down to 5-10% of it’s capacity.  Back home, it’s immediately recharged to 13.4 volts and then a battery maintainer with a desulphation cycle to keep the plates clean.   This typically happens 5 times a year, and the batteries usually make it 4 years before they cannot hold an adequate charge.  A small solar panel would easily re-charge and maintain the battery between visits, but we decided it is less costly to simply haul the battery back home and charge it there.

  • Wed, Nov 24, 2010 - 01:43am

    #25
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    Re: Water Lesson Learned: Don’t Put Off Today….

I am new here. I think water lesson is cool as this wwwsunpowerportcom. This is awesome. Read it and make some comment. Thanks. 😀

  • Wed, Nov 24, 2010 - 04:17am

    #26
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    Re: Water Lesson Learned: Don’t Put Off Today….

[quote=bowking]

I am new here. I think water lesson is cool as this wwwsunpowerportcom. This is awesome. Read it and make some comment. Thanks. 😀

[/quote]I think it’s too little for too much $$ and it does not fit this thread. Trolling are we?

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