Growmax Water 10" and 20" Deionization Kit – Final Resin Stage to Lower EC to 0.0

Growmax Water Deionization Kit: the final stage that takes your water to EC 0.0

The Growmax Water Deionization Kit is the additional ion exchange resin stage that is installed after your reverse osmosis equipment. Its function is simple and radical: it retains the ions that the membrane lets through and takes the water to EC 0.0 / 000 ppm TDS. That is the perfect starting point for preparing nutrient solutions with absolute precision, because you start with truly empty water and everything your EC meter measures is what you have added.

It is exactly the technology that the Maxquarium 000 PPM Reverse Osmosis with Deionization System already includes as standard. With this kit you can add that same final stage to a reverse osmosis system that does not have it, such as the Power Grow 500 L/day.

Carbon filter, osmosis and deionization: they are not the same

It is the most common confusion, and it costs money. Carbon filters such as the Eco Grow 240 L/h, the Garden Grow 480 L/h, the Super Grow 800 L/h or the Pro Grow 2000 L/h remove chlorine, chloramines and sediments, but they do not lower the EC. Reverse osmosis does drastically reduce the EC. And deionization is the final step: it starts with already osmosed water and leaves it at 000 ppm.

In other words: if your problem is chlorine and not hardness, osmosis is an unnecessary extra cost and a carbon filter is enough for you. If your problem is high EC, osmosis. And if you need absolute zero, osmosis + this deionization kit.

Two sizes available

• 10" Deionization Kit (ref. 422111): compact format, ideal for home and small to medium-sized cultivation equipment.
• 20" Deionization Kit (ref. 422112): greater resin volume, more autonomy between replacements and designed for equipment with higher flow or for installations that treat a lot of water.

Both kits include the filter holder, the ion exchange resin cartridge and the connections necessary to interleave them in the produced water line.

When to change the resin

Deionization resin is not washed or regenerated at home: it is exhausted and replaced. The sign is objective and leaves no room for doubt: when your EC/TDS meter starts showing above 000 ppm, the resin has reached its limit. The duration depends directly on the quality of the water that reaches it, so the better your osmosis works, the longer the resin will last.

The loose replacement cartridge is available at Growmax Water Spare Parts: 10" Deionization Filter (ref. 422109) and 20" Deionization Filter (ref. 422110).

Recommended operating conditions

Growmax Water home and commercial osmosis equipment are calculated based on mains water at 25 °C, with a minimum pressure of 3 kg and maximum of 6 kg (the optimum is at 4 bar) and a reference water of 500 ppm TDS, with an approximate rejection ratio of 2:1. If your inlet pressure is insufficient, production drops and the resin is exhausted sooner; in that case the solution is a pressure pump for osmosis or an equipment with an integrated pump such as the Max Pump 700.

Compatibility

It is installed at the produced water outlet of any Growmax Water reverse osmosis equipment: Grow MiniMax 75, Power Grow 500, Mega Grow 1000 and Grow Max 3000. For the connection use Growmax Water osmosis tubing of the size that corresponds to your equipment.

Related products

• Maxquarium 000 PPM Reverse Osmosis with Deionization — it already includes this stage as standard.
• Growmax Water Spare Parts and Filters — loose 10" and 20" DI cartridges.
• 1/4", 3/8" and 1/2" Osmosis Tubing.
• Pressure Pump for Osmosis.

At GrowIndustry we only work with proven quality products and trusted brands.

Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.

Your satisfaction is our priority.

1. Turn off the water supply to your reverse osmosis system and depressurize the line before handling anything.
2. Locate the purified water (permeate) outlet of the reverse osmosis system: the kit always goes after the membrane, never before.
3. Mount the filter holder vertically, with the inlet and outlet arrows pointing in the direction of flow.
4. Cut the tubing cleanly and perpendicularly, and insert it fully into the quick-connect inlet and outlet fittings.
5. Slowly turn on the water, check for leaks, and let the first few liters run to rinse the new resin.
6. Measure the EC of the outlet water with your meter: it should read 000 ppm. Repeat the measurement periodically to know when to replace the cartridge.