Green Round Tank – Rigid Water Reservoir for Irrigation · 200L, 300L & 500L

The Green Round Tank is the robust and reliable water reservoir you need to automate the irrigation of your cannabis crop, designed to store large volumes of nutrient solution safely while protecting it from light and degradation. It is the cornerstone of any efficient setup, allowing you to stop being a slave to the watering can and start managing your grow like a pro.

Are you tired of spending hours every week filling buckets, mixing bottles, and hauling water back and forth?

Manual watering is one of the most tedious tasks for a grower. It starts as a labor of love, but when the plants get big and thirsty, it turns into a physical hassle that eats up your free time. The result? You end up rushing the mix, spilling water, or worse, skipping a watering because you’re too tired, which stresses your plants and directly impacts the final weight of your harvest.

The Green Round Tank is the definitive solution to cut that cord. By centralizing your water supply, you can prepare the nutrient mix for the whole week in one go. It connects easily to automatic systems, ensuring your plants drink exactly what they need, when they need it, while you recover your time to chill or focus on other aspects of the grow.

How this product saves you time and effort

Imagine preparing your nutrient solution only once every 7 or 10 days. With this tank, the daily ritual of "fill, mix, pH check, water" disappears. You simply fill the reservoir to the desired level (200L, 300L, or 500L), add your fertilizers, and let your system do the heavy lifting. This is especially crucial during the flowering stage when plants consume water voraciously.

By integrating this tank with Irrigation Pumps, you transform a manual chore into an automated process. You no longer have to be present at the exact time the lights turn on to water. The tank acts as the heart of your operation, pumping life to your plants while you are at work, sleeping, or out with friends.

Furthermore, its design is specifically meant to reduce maintenance. The green plastic isn't just for looks; it filters out UV rays to prevent algae growth inside the tank. This means you spend less time scrubbing slime off the walls of your reservoir and more time enjoying your garden.

Simple steps to use it without wasting a minute

Setting up your irrigation station doesn't have to be rocket science. Follow this quick workflow to get it running:

1. Position it: Place the tank on a flat, stable surface, ideally slightly elevated if you aren't using a high-pressure pump.
2. Fill and Mix: Fill with water and add your nutrients. Use a PH calibration solution to ensure your meter is accurate before balancing the mix.
3. Oxygenate: It is highly recommended to drop an air stone inside to keep the water moving and oxygenated.
4. Connect: Attach your irrigation line or pump to the outlet.
5. Cover it: Secure the lid to prevent dust, bugs, or light from entering.
6. Forget it: Let the system run until the water level gets low.

Advantages and benefits in your daily routine

• Total Autonomy: Allows you to leave your home for days without worrying about your plants drying out.
• Algae Protection: The opaque green material blocks light, keeping the water clean and preventing nozzle clogs in your drip irrigation systems.
• Durability: Made of rigid, high-quality plastic that withstands knocks and environmental stress, suitable for both indoor rooms and outdoor terraces.
• Stability: Unlike flexible tanks, this rigid structure won't collapse or lose shape, providing a reliable long-term station.
• Consistency: By mixing a large batch, you ensure the pH and EC remain constant for several waterings, avoiding the fluctuations of mixing small daily batches.

Tips to integrate it into your habits without friction

To make this tank truly "set and forget," placement is key. If you are growing indoors, try to keep the tank outside the grow tent if possible; this keeps the water temperature lower (roots hate hot water) and saves precious space for your plants. If you grow outdoors, place it in a shaded area to prevent the sun from heating the nutrient solution excessively.

Another pro tip is to clean the bottom of the tank between crops. Since it's rigid and round, it's very easy to wipe down. Doing this ensures that no old salts or biofilm ruin your next batch of high-quality buds.

Frequently Asked Questions

What capacities are available?

We offer the Green Round Tank in 200 liters, 300 liters, and 500 liters. Choose the size based on the number of plants you have and how many days of autonomy you want.

Can I use it outdoors?

Absolutely. The plastic is weather-resistant and designed to withstand rain and wind. Just make sure the lid is secure so no debris falls in.

Does it come with a faucet or outlet?

These tanks usually come prepared for you to install the outlet that best fits your pipe size. It's a standard setup for growers.

How do I keep the water fresh?

We always recommend using a small water pump or air pump inside to keep the solution moving. Stagnant water can go bad, but moving water stays fresh and oxygenated for the roots.

Personal Experience of Pevgrow’s CEO (Alan)

"I've used all kinds of tanks, from the flexible fabric ones to these rigid green ones. Honestly, if you have the space, the Green Round Tank is the winner for durability. I use a 300L one for my outdoor setup. I fill it up on Sunday, adjust the pH, and I don't have to look at a hose for the rest of the week."

"The best thing for me is the peace of mind. I know the lid fits tight and the plastic is thick, so I don't worry about leaks or my dog knocking it over. If you want to take a weekend trip without asking a friend to water your plants, this is the cheapest and most effective upgrade you can make."