I am always seeking out better ways to garden which do not require excess labor. In short I am lazy. My wife and I do a lot of indoor gardening from containers filter water bottle and water frequently becomes a problem. We either forget the task or are simply tied up with other plans. Such behavior is extremely detrimental to the plants.
This brings to mind the use of a drip feeder to water the plants when necessary. Most plants prefer a generous supply of moisture at the root level. They do not want to be drenched in water but rather like the dampness on their roots. Overhead sprinkling systems tend to cause more troubles than they solve foremost being the fact that it encourages various leaf diseases. I am about to describe a soda bottle style drip feeder which I saw some time back on the internet and the best part of it is that it is entirely created from recycled materials.
All that is necessary to build one of these units is an empty two liter soda bottle if it will be used in an outdoor garden or a 16 to 20 ounce bottle if its planned use will be indoors in a large flower pot. Use something thin and sharp to puncture holes in the glass bottle. I used a 1/16 inch drill bit. The smaller the hole in the bottle the better it will function. Use fewer holes if you want it to feed slowly, as a very slow release product however it really depends upon how dry your soil actually gets. An important note here would be to put holes in the very bottom of your container as well. If you punch your holes only on the sides of the container you risk having stagnant water accumulate in the bottom thus you will develop algae which could likely cause the lose of your plants.
When you are ready to install the soda bottle place it into a dug out space next to your plant. This is especially good when the plant is first placed in the pot and is young. Leave the top of the glass water bottle with silicone sleeve open and exposed. As the water slowly decreases you can top it off with your garden hose or water container.
This is an excellent idea especially when your area has been subject to a drought and it fails to rain very much or you simply desire to conserve water. Keep in mind that most plants may be alright with this form of watering however some do not like getting their feet wet, so it would not work well for them. Avoid using this watering system on plants like succulents, etc.
One person reports that she resides in Arizona and tried this watering method on her tomato plants. She claims that her plants are looking fine using it and that glass water bottle with infuser she has even installed a gauge to monitor the moisture at the roots. She claims that there is moisture near the roots even after three days of not watering the plants. Now, this is with 100 degree weather outside. You can't beat that now can you?