Whichever water system you use for your hydroponics you are going to need to replace filters from time to time to protect your crops from problems. If you use a Growmax water system you will originally have high quality filters and membranes as part of the package. These include green coconut carbon block filters that are eco-friendly. A Growmax Garden Grow Carbon Block Filter will help towards good maintenance of your system, and if you have several filters it's a good idea to replace them all at the same time – there's not much point in replacing one only to find another is letting you down because it's clogged up. The replacement filter takes out a whole range of substances that could cause damage to your plants. These include herbicides, pesticides and chlorine together with a number of volatile organic contaminants such as toluene, benzenes, oils and detergents.
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