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Thread: Solar panels for vacuum pump

  1. #1
    Join Date
    Jan 2018
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    Manitoulin Island, Ontario
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    Default Solar panels for vacuum pump

    Hi everyone.....im trying to set up my lines so i have vacuum but having difficulty getting my system to work like i seen on youtube...so im thinkin on just running my pump continuously...the thing im wondering is ..i have a 250watt solar panel and want to know if that will charge my deep cycle battery after running all nite...i have a solar charge controller to hook up the panels and hope that 250 will be enough to top the battery after running all nite

  2. #2
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    Jan 2006
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    Oneida NY
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    Good question, will the panel be in a location where it will get full sun? Will the day be sunny? (that is the hard part, I know, I have 6320 watts of solar, of that only 1480 is battery back up.) How much power does your pump use in watts? What type of charge controller is it, PWM or MPPT? The latter will get you the most power but it costs far more. How many AH deep cycle battery will you have.
    Basically, you have a couple of options. The first is to have 2 such batteries, use one while you charge the second on house current. Another is to have a back up plan to charge the battery if there is not enough sun. Remember, especially if you have just 1 battery that it will be drawing power all day and all night. In the daytime whatever the solar generates, first goes to run the pump, only the excess goes to charge the battery. Many producers on this site use 12V deep cycle batteries to run a pump but I'm not aware of any that use a 250 watt solar panel and CC to maintain the battery.
    If your charge controller (CC) was 100% efficient, which it is not, a 250 watt panel in full sun under test conditions will generate 250 watts per hour. On my 1480 watt system I have very rarely seen even a brief moment where I got 1480 watts coming in. The few that came close or even exceeded the 1480 watts were when the temperature was quite cold (the panel will generate more power at -20F than at +40F in full sun). However I'll guess that on the good days (sun wise) you should be ok, on a rainy day you will still run for 24 hrs but won't have enough energy left to get you thru the second night. Give me the pump, battery and the CC specs and I'll try to get more specific.
    Dave Klish about 400 taps, down from much more. Will hold about the same for 2021
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    website: www.cnymaple.com

  3. #3
    Join Date
    Jul 2012
    Location
    Lawrence County Ohio
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    246

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    https://www.thecalculatorsite.com/co...watts-amps.php

    250 watts makes 20+ amps at 12V. With a shurflo or equivalent pulling up to 10 amps, you should have a 10 amp surplus to charge the battery during sunlight hours if your panel is producing 100%. There are lots of variables though, and in my opinion, and what I am doing this year is running two batteries on each pump and using a temp controller to switch the pump on & off. I used 100 watt panels last year and would get about 4 days out of a battery- I have an additional panel and battery for each shurflo this year and with t he addition of temp controllers, I won't have to be 4 places at once to turn the pumps on when the woods thaw. Good luck!
    2012 15 jugs
    2017 125 3/16 -18"x 6' drop flue, home made arch
    2018 240 3/16 -Deer Run 125 RO
    2019 450 3/16 -converted RO to electric, added a membrane
    2020 600 3/16 -Maple Pro 2x6 Raised Flue, added AOF/AUF
    2021 570 3/16 -built a SS steam hood, new Smoky Lake SS filter press

  4. #4
    Join Date
    Nov 2013
    Location
    Princeton, MA
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    The Shurflo pumps draw substantially less than max current when used for vacuum. I have seen less than 1.5 amps draw on a Shurflo 4008 3gpm pump, and about 2 amps max on a 4048 pump normally. My system last year had a 100W solar charger and single deep cycle marine battery. If the pump was shut down at night, the battery would maintain charge. But where there was a 2-3 day warm period, overcast weather, the battery would go low and needed recharging or swapping out. Age of battery is a factor also, mine was 3-4 years old. Bottom line, with 100 watt solar charger you may need to recharge the battery once or twice during the season.
    Mountain Maple farm
    2020: 207 taps, 60% red maples. Mountain Maple S3 diaphragm pump controller with automated sap transfer
    New website:
    https://www.mountainmaplefarm.com
    https://www.facebook.com/MountainMapleFarm/

  5. #5
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    Jan 2018
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    Manitoulin Island, Ontario
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    Hi dave...i have an aqua pro pump model# AP3000 3.0gpm....the battery is an interstate deep cycle 12v and the c.c. is just a generic brand off amazon model z30 12v20201113_130807.jpg20201113_130820.jpg
    Attached Images Attached Images
    Last edited by Beerclouds; 11-13-2020 at 01:18 PM.

  6. #6
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    Jan 2018
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    Manitoulin Island, Ontario
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    I have been attempting to hook up an inkbird itc 1000f but to no success...ive watched almost every video on youtube and still cant make it turn my pump on....im on the verge of a padded room soon...

  7. #7
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    Nov 2013
    Location
    Princeton, MA
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    The Aqua Pro pump should draw about the same power as the Shurflo 4008, 1.2 to 1.4 amps, and your 250W panel should be more than adequate to keep the battery charged. Check out my website, you can get a 3-D controller that monitors and automates everything including a bypass valve.

    Dave
    Mountain Maple farm
    2020: 207 taps, 60% red maples. Mountain Maple S3 diaphragm pump controller with automated sap transfer
    New website:
    https://www.mountainmaplefarm.com
    https://www.facebook.com/MountainMapleFarm/

  8. #8
    Join Date
    Jan 2006
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    Oneida NY
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    Quote Originally Posted by Beerclouds View Post
    Hi dave...i have an aqua pro pump model# AP3000 3.0gpm....the battery is an interstate deep cycle 12v and the c.c. is just a generic brand off amazon model z30 12vAttachment 21606Attachment 21607
    I'm not familiar with that pump but if I can read the label correctly, it uses 3.5A at 12V. That would be when moving water or sap, air and intermittent sap would be less. That battery is too small, you want almost double that AH rating. The charge controller is a PWM, (pulse width modulation) type. PWM sends the same voltage all of the time, but it varies the length of the pulse depending the SOC (state of charge) of the battery. They are much cheaper but still might be OK. Solar is getting much cheaper, back when I bought my first 2 panels (150 watts each) they cost $410 each. Now you can buy far higher efficiency panels at about $1-1.25/watt. Get some from well under $1/watt. I suggest if you really want to try solar, you get one more panel the same as the one you have, not just the samw wattage. Different panels do not play well together. Each panel has specific specs on it's performance. If you run 2 panels together that are not exactly the same specs, the better one will only perform at the one with the lower spec in any category. That is why I have 2 systems, I had 8 panels by Kyocera 185 watt. I wanted more but they had been discontinued. When I looked at Kyocera 220 watt panels and compared the specs, if I added 4840 watts worth and coupled them to the 8@ 185 watts array(1480 watts) my best input would have been just 5050 watts rather than the 6320 I now get. Tha't because the specs don't match.
    With 2 panels (500 watts total) and if placed in a sunny location, along with a top of the line deep cycle lead acid battery you might be able to get 3-5 days before needing a recharge if the days are sunny. If cloudy you might get 2 days (even on mostly cloudy days you will get some power). If you use your small existing battery to connect when you take the big one for a charge, it should run 1 night.
    Dave Klish about 400 taps, down from much more. Will hold about the same for 2021
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    website: www.cnymaple.com

  9. #9
    Join Date
    Mar 2017
    Location
    Granville, PA
    Posts
    353

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    Quote Originally Posted by Beerclouds View Post
    I have been attempting to hook up an inkbird itc 1000f but to no success...ive watched almost every video on youtube and still cant make it turn my pump on....im on the verge of a padded room soon...
    Beerclouds, George from youtube channel Barley and Hops gives a tutorial on setting up a rainbird temperature control. His application is to control a heating element that I found useful for my syrup bottler but hopefully it will give enough information to you to help set up a pump control. Hope this helps, if not, George seems to be a smart guy and takes phone calls so maybe he can point you in the right direction if the video doesn't give enough information.

    Looking at the product information, I would think that you would want it set for cool mode but I know from my controller that the other parameters are just as important if not more.
    Last edited by minehart gap; 11-15-2020 at 06:18 AM.
    Matt,
    Minehart Gap Maple

  10. #10
    Join Date
    Nov 2011
    Location
    Mi
    Posts
    111

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    Just a random thought on the shurflow 4008 12volt pump . Could you just hook it to a cheap old car battery charger if you had power near the pump ? Would that run the pump and not cause Any problem. I have a old charger I don’t use and power and am going to use 3/16 lines on about 75 taps with three lines. Figured this saves me buying a battery that I don’t have now.
    Last edited by Greenthumb; 12-06-2020 at 12:47 PM.
    Smoky lake full pint on my leader half pint arch
    75- 100 taps depending on how lazy I am
    Homemade RO sapinator
    4 kids who help (at least for about the first hour of the season)

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