PLANT!T BigFloat Auto Top Up Kit

🌱 PLANT!T BigFloat Auto Top Up Kit — Guide and Product Information

Reliable automatic reservoir top-up

The PLANT!T BigFloat Auto Top Up Kit is designed to help growers maintain stable liquid levels in system reservoirs with less day-to-day effort. Connected to a separate header tank, the included low pressure float valve automatically allows water or nutrient solution to top up your reservoir as the level drops.

Because the system works under gravity, no pump is required. This makes it a simple and practical option for growers who want to reduce regular tank inspections and manual refilling.

Why use an auto top-up kit?

Reservoir levels can fall steadily between checks, especially in active hydroponic or irrigation systems. An auto top-up kit helps maintain a more consistent level, which can make routine maintenance easier and provide reassurance when you are away from the grow room for short periods.

• ✔ Reduces labour involved in regular filling and inspection
• ✔ Helps keep reservoir levels topped up automatically
• ✔ No pump needed when used with a suitable gravity-fed header tank
• ✔ Useful for unattended periods and general grow room convenience

Included fittings and key features

All necessary core fittings are supplied in the PLANT!T BigFloat Auto Top Up Kit, allowing straightforward connection to a suitable header tank of your choice up to 400 litres. The kit includes a grey low pressure float valve, 2 metres of 13mm flexible pipe, a 13mm barbed tee, a 13mm nut and tail with 3/4 inch BSP, and a 13mm poly to hose connector.

This gives growers a practical starting point for adding automated top-up functionality to compatible systems using standard pipework and fittings.

Suitable applications

This kit is well suited to hydroponic systems, irrigation reservoirs and other setups where maintaining consistent reservoir volume is important. It can be particularly useful in grow rooms where daily access is limited or during holiday periods when manual topping up may be inconvenient.

If you are building or adapting a system, you can explore more parts in our Pipe and Fittings category. For related components, you may also find the IWS Universal T Piece and IWS Universal Elbow useful when planning pipe runs and reservoir connections.

Related growing advice and compatible accessories

Good system management also depends on the wider grow room environment. For more advice, read our guide to the importance of proper ventilation in a grow tent. If you are refining your feeding routine, our article on boosting plant nutrition with advanced grow kit techniques is also worth a look.

Where additional irrigation distribution is needed, the PLANT!T Watering Ring 200mm may also be a helpful addition to your setup.

Technical Specifications

• ✔ Product: PLANT!T BigFloat Auto Top Up Kit
• ✔ Product type: Auto top-up kit
• ✔ Category: Pipe and Fittings
• ✔ Operation: Gravity-fed, no pump required
• ✔ Header tank suitability: Up to 400 litres
• ✔ Included pipe: 2 metres of 13mm flexible pipe
• ✔ Included fittings: Grey low pressure float valve, 13mm barbed tee, 13mm nut and tail with 3/4 inch BSP, 13mm poly to hose connector
• ✔ Product weight: 1

Ideal Uses

• ✔ Topping up hydroponic system reservoirs automatically
• ✔ Reducing manual checks in irrigation and feeding systems
• ✔ Maintaining reservoir levels during short unattended periods
• ✔ Grow rooms where simple gravity-fed automation is preferred

Setup and Usage Tips

Position the header tank so gravity can feed the system correctly, and make sure all hose connections are secure before use. The float valve should be installed at the desired reservoir level so it can open and close freely as the liquid level changes.

It is sensible to test the full setup with clean water first to confirm the float position, connection integrity and flow behaviour. Regularly inspect the valve and pipework for blockages, wear or build-up, especially when used in nutrient systems.

FAQ

How does the PLANT!T BigFloat Auto Top Up Kit work?
The kit uses a low pressure float valve connected to a separate header tank. As the reservoir level drops, the float opens to allow more liquid in, then closes again when the desired level is reached.

Does this kit need a pump?
No. It is designed to work under gravity, so no pump is required as long as the header tank is positioned correctly above the reservoir.

What is included in the kit?
The kit includes a grey low pressure float valve, 2 metres of 13mm flexible pipe, a 13mm barbed tee, a 13mm nut and tail with 3/4 inch BSP, and a 13mm poly to hose connector.

What size header tank can it be used with?
The product data states that it can be attached to a header tank of your choice up to 400 litres.

Is it suitable for unattended grow rooms?
Yes, it is particularly useful for unattended grow rooms and holiday periods where reducing manual reservoir checks is helpful.

Can it be used with different reservoir setups?
It is intended for compatible reservoirs and systems that can use a gravity-fed top-up arrangement. Always check your tank layout, available height and pipe compatibility before installation.