Why Use Reverse Osmosis in Hydroponic Gardens?
Osmosis is one of the most important ways that plants and animals achieve homeostasis.  Homeostasis is any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival.
Where plants are grown in nutrient-rich water as opposed to soil, Reverse Osmosis is often preferred in hydroponics because you are effectively supplying a clean slate.  A clean slate will allow you, as a grower to precisely control the nutrient composition and avoid any unwanted interactions between the nutrients and the existing minerals in the water.

Saying this, whilst osmosis water can offer these benefits, it's essential to note that some minerals are beneficial for plant growth and If you use solely RO water, you may need to supplement with essential nutrients to ensure your plants receive a well-rounded diet.

Regular testing of soil and water is recommended to monitor nutrient levels and make adjustments accordingly in your quest for the homeostatic state.

Of course, the primary purpose of reverse osmosis is to remove impurities and contaminants from water. The RO process utilises a semi-permeable membrane that allows water molecules to pass through while blocking the majority of dissolved salts, minerals, bacteria, viruses, and other contaminants. This results is water that is significantly purer than the feed water.

Other benefits are remarkable if you have your growing technique up to scratch!

  1. Improved Taste and Odour: The removal of impurities through reverse osmosis often leads to water that is free from unpleasant tastes and odours.  Many substances that contribute to undesirable flavours or smells, such as chlorine, are effectively eliminated during the RO process.

  2. Reduced Salt Content: RO is particularly effective at removing salts and minerals from water. This is crucial in areas where the water supply has high levels of dissolved solids or salts that can negatively impact the taste of water and, in some cases, be harmful to health.

  3. Versatility in Water Treatment: Reverse osmosis is a versatile technology that can be applied in various settings, including residential, commercial, and industrial applications. It is commonly used for home drinking water systems, desalination of seawater, and the production of ultra pure water for industrial processes.

  4. Conservation of Resources: In applications such as desalination, where RO is used to convert seawater into freshwater, the technology contributes to the conservation of water resources. It provides an alternative water source in regions facing water scarcity or where traditional freshwater sources are limited.

  5. Efficient Removal of Microorganisms: RO membranes are effective at removing bacteria, viruses, and other microorganisms from water. This makes reverse osmosis a valuable tool in ensuring water safety, especially in situations where microbial contamination poses a health risk.

  6. Cost-Effective Water Treatment: While the initial setup cost of an RO system can vary, the long-term operational costs are often lower compared to other water treatment methods. This is because RO systems typically require less energy and maintenance than some alternative water purification technologies.

  7. Environmental Impact: Reverse osmosis can contribute to environmental sustainability by providing a means of purifying water without the need for certain chemicals. It is a chemical-free process that relies on physical filtration, reducing the environmental impact associated with the use of certain water treatment chemicals.

Norfolk Lights & Hydroponics stock a diverse range of nutrients from Ferro, who offer the perfect solution for plants grown using osmosis.


Osmosis nutrientsReverse osmosisRo water