Is Your Water Hurting Your Yields?

Unfiltered water's full of impurities. Left untreated it'll slow plant growth and damage your grow room equipment.

So what's in your water?

Find out more - Take a look at our infographic!

For best results, use an RO filter!

Our GrowMax Reverse Osmosis Filters remove up to:

• 99% of chlorine
• Reduce sediments to 5 microns
• 95% of salts & heavy metals

All GrowMax filters are easy to connect - you can use them right out of the box!

If buying an RO Filter, make sure it produces enough water:

To prevent pH problems when using RO Water in your feed, make sure that you:

1) Add 0.5ml - 1ml of SHOGUN Silicon per L of RO

2) Adjust your pH to neutral

3) Add CalMag until your nutrient strength is 0.2 EC - 0.4 EC

4) Mix your nutrients as normal (use soft water formulations)

1) Add 0.25ml - 0.5ml of SHOGUN Silicon per L of RO 

2) Adjust your pH to neutral

3) Add CalMag until your nutrient strength is 0.2 EC

4) Mix your nutrients as normal

You can irrigate using straight RO water as there are already carbonate buffers in soil.

If you're not using a dripper or recirculating system, keep your nutrient moving with a water pump. Since there are no chloramines or chlorides in your water, it'll stagnate if left still for 5 days or more.

*When adjusting your pH, mix 1ml of pH down with 1L of RO water. Add 20ml of this mixture at a time to bring your pH down.

Here are a few extras you may need.

Reverse Osmosis filters need a water pressure of at least 40 PSI.

Tap water pressure varies, so you may need a booster pump – it’ll raise the pressure in your RO system by an extra 15-50 PSI (dependent on tap water quality and RO capacity).

For best results, aim for 60 – 80 PSI. With this pressure you'll get a better pure water to waste water ratio.

You'll want to keep a carbon filter and sediment filter handy. Change them every 3 months to preserve the life of the RO membrane in your RO filter.

In a hydro system, use Silver Bullet Roots. Nothing else is as good as this stuff.

It'll kill 99.99% of all root nasties, including Pythium.

With impurities gone, there's nothing left to restrict microbial activity. All the biological stimulants you know and love really come into their own.

We're talking about the likes of Charge, Biosys, Mykos & Mammoth P.

Limescale at the end of your tap and on the inside of your kettle.

You lose 10% of reflectivity over 3 months, due to mineral deposits on your lamp and reflector, if you use it with a humidifier.

Yes, unfiltered water clogs up filters, causing limited odour control and poor extraction while shortening your filter's life if you use it with a humidifier.

Use a CF meter: 0 - 3 CF (soft to moderately soft), 4 - 5 CF (medium to moderately hard) or 6+ CF (hard to very hard).

With an RO (reverse osmosis) Filter.

CAC03 (Calcium Carbonate), MgC03 (Magnesium Carbonate) and Cl (Chlorine).

Very easy - you can connect them to a tap or pipe.