zetor 4911 wrote: » The price of the smallest unit from solarpumpsolutions is €2208. Would be interested to know what pump and solar panel size they use.
zetor 4911 wrote: » A bit of topic here. I want to pump water from a river to a field about 150 meters away there is no power on the farm. Would it be possibly to run a pump of a battery connected to a solar panel?
zetor 4911 wrote: » Thanks for that. if I was to use the Northstar pump (7.0 GPM) of a 12 volt battery what size of a solar panel would I need.
emaherx wrote: » For your case I'm not sure. I normally by cheap 12V pumps from Amazon. But your requirment to lift water 8M and push along 150M of pipe is beyond anything I have experiance with. From what I've seen on-line 12V pumps can range upto pumps capable of about 40M Head height, not sure how one would perform lifting only 8M but through 150M of pipe. 24V pumps can be capable of 100M+ Head but are obviosly more expensive. And there are 36V/48V and higher available. Generally googling for these types of pumps leads to the usual Chineese websites or E-Bay from China and Aus/NZ. I'd be interested to see what pump is in the https://www.solarpumpsolutions.ie/. AFAIK their product is well capable of this senario. My Brother in law has one so I might just go have a little look.
GinSoaked wrote: » You'd need to get the performance graph from the supplier/manufacturer to be sure. Its 60 psi which is well over 4 bar, decent enough and 12 ft lift (suction pipe lift from water level to pump) is also quite good (I play around with petrol pumps). No priming is a great plus. Don't know if 1,800 liters an hour would be enough as that seems low to me but you can't get blood out of a stone. If you are limited by battery power you have to take what you can get. That 1,800l would be a max with no head and no lift. If you had to a -6 ft head from say a river and then had another few feet lift up hill you'd likely be down to half of that. Its always best to run a pump with a positive head (water from above) and where you can't to get the pump as low as possible near the water surface so the pump has to do the least amount of suction. With a 12V system that does give you the option of getting the pump close to the water. Edit yet again: Found the manual for that Northstar pump http://www.ntechina.com/upload/file/20180201/2018020110140630630.pdf so probably chinese :-) Companies own version which looks the same https://www.northerntool.com/images/downloads/manuals/2685561.pdf
GinSoaked wrote: » I've always taken it to mean you can turn them on and off like a tap. Many electric pumps would be destroyed by quick regular on off cycles.
zetor 4911 wrote: » I wonder how far it would pump to a drinker without a pressure vessel?
GinSoaked wrote: » Because its an on demand pump you don't need a pressure vessel. It would work fine if you really felt you needed a pressure vessel as the pressure vessel works up to a max pressure and doesn't really have min.
zetor 4911 wrote: » Would that pump be able to fill the pressure vessel considering the pressure against it?
Gman1987 wrote: » I was looking into a DIY solar job a few months back but in the end I didnt need it as I was able to work with the current gravity fed system that was there. Anyways, I was looking at using a pump like these:http://northstarsprayers.ie/12v-diaphram-pumps.html And have this pumping into a pressure vessel like thesehttps://www.ebay.ie/itm/100L-Pressure-Tank-Vessel-Expansion-for-Domestic-Waterworks-Liter-EPDM-Membrane/333237932712?hash=item4d968752a8:g:8qsAAOSwrx5e~vRW Might need to put a pressure switch on the tank if the one on the pump cant be adjusted. Then the usual, batteries, solar controller and solar panel. Not sure if it would work but thats what I was thinking.
minerleague wrote: » thanks for that, what does " On demand" mean on the diaphram pumps?
djmc wrote: » I put my solar fence into an old fridge completely weather proof and insulated against heat and frost.
GinSoaked wrote: » Can you remember where you got the plastic enclosure/box or any other info on it? Its a good size and I like the easy access.
zetor 4911 wrote: » Thanks for the reply. I have looked at the ready made option from solarpumpsolutions and waiting on a price from them would say that it will be out side my price range.Would be interested to know what pump they use in their unit.
Zimmerframe wrote: »
emaherx wrote: » This is your main concern when buying a pump. make sure it can pump to this height and @ that distance.
zetor 4911 wrote: » From water level in river to the drinker I would say a height difference of 8 meters
minerleague wrote: » was thinking of two float switches so pump will come on when ibc nearly empty and stop when nearly full. with 1 switch pump would be on/off every time cattle drank even a small amount of water. what is a charge controller?
emaherx wrote: » You said you need to pump 150m is there much of a difference in height between the location you intend on placing the drinker and the river?
emaherx wrote: » No, float switch in IBC so pump starts when level in IBC drops and stops when it's full.
blue5000 wrote: » Look up solar pump solutions.ie
emaherx wrote: » Do you mean without solar? Just charging the battery regularly?
zetor 4911 wrote: » Would a 12V pump and 12V battery do the job.
emaherx wrote: » It's possible, you need a pump with a pressure switch to work with your troughs ball valve. But the IBC can add a bit of a backup in case of breakdown on a DIY solution.
