In Thailand, it is dry from December through April.
In order to maintain the health of vegetable gardens and fruit trees, you need water and a lot of it.
Solar well pump systems are the answer to unlimited water and zero water or electric bills.
If you have a well drilled (30,000 thb), you can have a solar water pump, electronic solar controller, (4) 600 Watt Solar Panels, metal solar panel stand and all installation for as low as 28,000thb
This will give you an unlimited water supply.
It sure beats dragging a heavy hose around.