Water quality and the hydroponic salts tester

Author: Scott  



I am in Namibia. How do you test to see if your water is not too salty except tasting it?

Can you get reading? and does the electro conduct test do the same?

Hello there

Hydroponic Water supplies must be low in total dissolved solids, and low in sodium.

What is safe for humans can be toxic to plants as well as the other way around.

Usually an EC meter is used to test that the water is low in total dissolved solids.

If the test shows there is a TDS of more than around 0.4EC, a test at a laboratory is required to see if the contents of the water are safe for plants (e.g. zinc) and can be allowed for in the nutrient formula, or unsafe such as sodium, which would indicate changing to an alternate source of water or if the only source, the sodium could be removed by reverse osmosis filtration.

Hope that makes it clearer.


Scott Andrew


Hydrocentre and Express Mail Orders.

4/50 Spencer Road Nerang QLD 4211 Australia.

Phone (07) 5527 4155 (Phone is always recommended for urgent problems or dilemmas as email can take several back and forth’s to achieve a solution).

scott@hydrocentre.com.au (Recommended for non-urgent items).

email checked morning and afternoon minimum on week days only.


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