Which tontau is right for your garden? Here you’ll find everything about our three products – clear and simple.
How tontau works
All tontau products use the same principle: the natural capillary action of clay. Low-fired clay draws water on its own and delivers it directly to the roots – exactly as much as the plant needs at any given moment.
|
💧 No electricity needed |
🌱 Plug & Play |
♻️ Up to 70% less water |
SEASON START
tontau TWO – The invisible solution
Laid horizontally underground. Install once, forget about it all season.
Perfect for the start of season
tontau TWO is ideal when you’re planning your irrigation at the beginning of the season or setting up a new bed. Lay the elements in a trench – before the plants go in – and enjoy hassle-free watering all season long.
|
🌿 New beds |
🏡 Invisible |
📏 Long runs |
🔗 Modular |
Where tontau TWO shines
New installations: vegetable beds, raised beds or greenhouses
Season start: in spring when beds are still empty
Longer runs: for even coverage across the bed
Long-term: install and forget
Installation in 5 steps
-
Dig a trench (at least 10 cm deep)
-
Place tontau TWO elements in the trench and connect with hose
-
Link multiple TWOs for longer runs
-
At the end: use tontau ONE as end piece or a terra plug
-
Fill the trench, turn on water – done!
|
💡 |
Important: tontau TWO is a through-flow element – water passes through and must be sealed at the end. Use a tontau ONE as end piece or a terra plug. |
Technical specs
Wall thickness: 8–10 mm
Installation depth: minimum 10 cm
Irrigation radius: approx. 60 cm (soil dependent)
Recommended hose: ¾″ (Gardena Comfort HighFLEX)
→ Discover tontau TWO in the shop
MID-SEASON
tontau ONE - The flexible all-rounder
Vertical and ready to use immediately. Even mid-season, without disturbing existing plants.
Perfect for existing beds
tontau ONE is your first choice when your bed is already planted. Simply dig a +6cm hole next to the plant, insert tontau ONE, connect the hose - done. No digging up, no root disturbance.
|
🔧 Retrofit |
✈️ Holiday watering |
🎯 Spot watering |
🔗 Series connection |
Where tontau ONE shines
Retrofitting: into existing beds, raised beds or greenhouses
Individual plants: target specific plants or shrubs
Holiday watering: quick setup, weeks of reliable irrigation
Flexible: relocate or expand anytime
tontau ONE can do more than you think!
Option 1 - Standalone: Dig a hole, insert, connect hose. Perfect for individual plants or shrubs.
Option 2 - Series connection: Link multiple tontau ONEs with T-pieces – included in the 10-pack. Water an entire bed!
Option 3 - End piece for TWO: At the end of a tontau TWO line, ONE seals the line and irrigates at the same time.
|
⚡ |
Common misconception: tontau ONE is not just an end piece! It’s a full irrigation element with three use cases – our most versatile product. |
Technical specs
Length: approx. 210 mm
Diameter: approx. 50 mm
Water output: at least 1.7 litres per day - but demand-driven
Irrigation radius: approx. 60 cm (soil dependent)
Max. water pressure: 1 bar (pressure reducer recommended)
→ Discover tontau ONE in the shop
ACCESSORY
terra plug -The end plug with indicator function
Seals hose lines simply and reliably - made from fired clay. The terra plug sits visibly at the end of the system, sticking out of the ground, and serves as a handy moisture indicator: if the terra plug is moist, the system is running- everything’s working!
Seal a hose line: without additional irrigation
Moisture check: visible at the system end – moist = system is running
Alternative: to tontau ONE as end piece of a TWO line
Temporary: close off hose connections when needed
Fits ½″ and ¾″ hoses.
→ Discover terra plug in the shop
At a glance
|
tontau TWO |
tontau ONE |
terra plug |
|
|
Installation |
Horizontal |
Vertical |
On hose |
|
Visible? |
No |
Partially |
Yes (indicator) |
|
Ideal for |
Season start |
Mid-season |
Sealing |
|
Existing bed |
Limited |
✓ Ideal |
– |
|
New installation |
✓ Ideal |
✓ |
– |
|
Greenhouse |
✓ |
✓ |
– |
|
Raised bed |
✓ |
✓ |
– |
|
Series connection |
✓ |
✓ T-pieces |
– |
|
As end piece |
✗ |
✓ |
✓ |
Typical tontau setups
How to combine the products for your garden:
|
Retrofit an existing bed Three tomato plants that need better watering? No digging up required. → 3× tontau ONE + T-pieces + hose |
|
New raised bed in spring 4-metre raised bed for the coming season? Install once, relax all season. → Multiple TWO in trench + 1× ONE as end piece |
|
Mixed system Long row with individual branches? Combine the strengths of both systems. → TWO as main line + ONE at branches |
|
Greenhouse irrigation Automatic watering through summer – possible with both systems. → ONE in series (every 50 cm) or TWO horizontal |
|
Quick holiday watering Flying out tomorrow? Set up in 10 minutes, reliable for weeks. → tontau ONE + rain barrel + hose |
Frequently asked questions
Can I connect tontau ONE in series?
Yes! The T-pieces in the 10-pack are designed for exactly that. You can connect as many tontau ONEs as you like and irrigate an entire bed.
Is tontau ONE only an end piece?
No! tontau ONE is a full irrigation element with three use cases: standalone, series connection, or as end piece of a tontau TWO line.
Can I combine ONE and TWO?
Absolutely! That’s actually a very popular combination. tontau TWO as the main underground line, tontau ONE as end piece or at branch points.
Do I need electricity or water pressure?
No. tontau works completely without electricity, batteries, or electronics – and without water pressure. You can connect it to a rain barrel. With mains water, we recommend a pressure reducer (max. 1 bar).
Which hose should I use?
We recommend ¾″ hoses. ½″ works too but requires more care. Our tip: Gardena Comfort HighFLEX ¾″.
How many tontau do I need?
The irrigation radius is approx. 60 cm. Rule of thumb: plan one tontau element every 50–60 cm.
Where can I use tontau?
Vegetable beds, raised beds, greenhouses, flower beds - anywhere plants grow in soil. tontau is designed for outdoor gardens.
Do I need to remove tontau in winter?
It depends! German winters are not critical but clay is frost-sensitive when you leave water in. Remove all water out of the elements before the first frost. Anyhow, winter is a great time to clean your tontaus.
Ready for your garden?
Save water, save time – with the natural power of clay.
