Above diagrams is a simple setup which make use of the 15 mm StrainerBell siphon in a media base flood & drain growbed over a fish tank and the following components;
- 12V/24V 3A/5A Charge Controller
- 12 VDC 5 watt DC Submersible pump
- 20 ~ 30 watt Solar Panels
Item 1 ~ 3 total cost should not be more than USD 50.00 ~ 60.00 as in ebay, but the battery will be subjective either new or used.
Excess power from the solar panels is stored to the battery for over night use, the pump and charge controller estimated current requirement is less than 1/2 ampere at 12 volts DC.