Irrigation Hard Water Limescale Treatment System
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Controlling hard water deposits and limescale in irrigation systems can be very challenging and costly because it is very important to ensure nozzles and fittings work properly while being able to move adequate amounts of water to plants. This situation poses several challenges including the cost of treatment method, and what, if any potential treatment after-effects may pose to the plants. Extreme hard water deposits can be hard on plants; it builds upon the foliage and blocks sunlight and can eventually kill the plant.
Using ion exchange is not always a practical method because of the chlorides that remain in the treated water and the negative effect they have on the plants. And the cost of salt and wasted water for regeneration should also be considered. One exception to using ion exchange would be the use of potassium instead of salt. Potassium can actually be beneficial to the plant, but usually, this method is not cost-effective, and you will have the wasted brine water.
Irrigation Hard Water Limescale Treatment Systems vary greatly depending on the size and rated GPM of the system. The majority of chemical-free water treatment systems will be catalytic. Catalytic technology is used by many types of non-ion exchange water conditioners and is available in Template Assisted Crystallization (T.A.C.) media, and solid Electro-Mechanical metallic cores that perform the same principle, that being to break down calcium carbonate into harmless aragonite particles.
While this method is very effective with limescale control, aragonite can be just as big of a problem on plants, because it will eventually coat the foliage which blocks sunlight and nutrients. And it’s too labor-intensive to clean the aragonite dust from the plants. Another issue with T.A.C. media is that excessive chlorine/chlorides and iron can eventually foul the media which ruins the media. Solid Electro-Mechanical cores can easily be removed from the hard water conditioner, cleaned and re-installed and last for decades.
A very popular hard water treatment method used in industrial hard water treatment and municipalities are the use of polyphosphates, both solid and liquid. Polyphosphates used for hard water treatment are usually manufactured from plants, and very eco-friendly. MCT501c is a popular anti-scale liquid that can be injected directly into the water treatments system and mixes readily with water. The solid form of polyphosphates are small granules and used in cartridge filters which dissolve slowly. Both of these forms are excellent for sequestering calcium carbonate, aragonite, and small amounts of iron. And a real benefit to using polyphosphates is that it’s ideal for irrigation hard water treatment because it keeps the hard water deposits in suspension and its plant-based.
Filter Water Direct LLC offers both polyphosphate canisters and liquid, and Electro-mechanical cores (Hard Water Bullet) individually as well as our popular Triple Action Poly Hard Water Conditioner that combines both of these technologies. Our 2” Poly Hard Water Irrigation Limescale Conditioner is a compact and inexpensive solution to treating hard water in irrigation and industrial applications. It combines excellent water filtration using a 130-micron stainless steel filter, our popular Hard Water Bullet electro-mechanical core, and polyphosphate hard water sequestration. This hard water treatment process is ideal for irrigation in crop production, greenhouses, tree farms and turf farms. In industrial applications, its ideal for manufacturing, cooling towers and multifamily complexes where hard water is present and ion exchange is not practical.
This Irrigation Hard Water Limescale Treatment System can be installed where many other larger water treatment systems cannot because of its compact size. It holds 89 oz (7 lbs) of polyphosphate granules.
Polyphosphate use formula:
1000 gallons of water used will usually require 10-15 grams (0.35-0.53 oz)
- Holds 7 lbs (89 ounces of polyphosphate
- 130-micron stainless steel filter
- Included relief valves
- Included drain cap
- Included installation nipples
- Total weight 18 LBS
- 100 gpm rated
- 120 max psi rated
- 72” sq inch filter area
- Polypropylene construction