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Rainwater tank Amphora 500l

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1,353.00 PLN 5%

1,285.35 PLN tax incl

1,045.00 PLN tax excl

The lowest price of this product in the last 30 days before the discount was 1,231.23 PLN gross

sale offer ends in just

Catalog number: 211702

Capacity:

Delivery from 88.99 PLN

Delivery

Name	Time of delivery	Price
Kurier ( przelew na konto)	Czas dostawy od 2-4 dni	Free!
Kurier (płatność za pobraniem)	Czas dostawy 1-4 dni roboczych	Free!
Indywidualna wycena dostawy - Spedycja	Please confirm your order - delivery costs will be emailed to you as a separate proforma invoice. Shipping quote for large-volume products. Please be patient for a while.	individual valuation

Delivery time 5-7 days

Ask about the product

Rainwater tank in the garden
Decorative rainwater tanks, volume 240, 300 and 500L
Stylized on the ancient clay amphora

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Product compliance details: Manufacturer responsible for the product

Responsibility for the Product

Manufacturer Otto Graf GmbH Carl-Zeiss-Str. 2-6 79331 Teningen Germany export@garantia.com

GARANTIA is a brand offering a wide range of products for rainwater collection and management - above and below ground tanks, garden systems, composters, as well as rainwater and wastewater management products. All products are designed with functionality, aesthetics and durability in mind. The brand has been in operation for over 20 years, applying strict quality controls at every stage of production and testing products individually.

GARANTIA products undergo individual quality tests and are subjected to strict production controls.
The brand declares that the tanks, composters and garden systems are designed to meet the special requirements for rainwater harvesting and are manufactured on modern machinery to ensure compliance with industry standards and high quality standards.
GARANTIA products are made from materials that are highly recycled (part of the range is even made from up to 100% recycled plastics), supporting environmental and sustainability standards.

GARANTIA provides technical documentation and instructions for use for its products, as well as customer support for the selection of suitable solutions. The company declares the long-term durability of its products and the quality of its workmanship. Through the use of testing and quality control, the manufacturer seeks to ensure that products are safe, durable and meet users' expectations in terms of quality and function.

Decorative tank Amphora

Decorative rainwater tanks for garden

Polyethylene rainwater tank is available in volume of 240, 300 and 500 l. High-quality polyethylene is resistant to adverse weather conditions, does not fade in the sun. In addition, rainwater tank has a thread 3/4" intended to be mounted tap water intake (to be ordered separately). A cover with a diameter of 18 cm is included. The tank looks like the Mediterranean clay amphora (similar to the Toskana 300L tank). The tank will give our gardens a Mediterranean character.

Dimensions

Volume [l]	Diameter [cm]	Height [cm]	Weight [kg]
240	59,00	118,00	8,00
300	68,00	129,00	10,00
500	79,00	150,00	14,00

Specific References

ean13: 4023122143642

DIAGRAM OF A COMPLETE RAINWATER STORAGE TANK SET

To complete a complete garden rainwater harvesting tank set you need to :

1. select a DECORATIVE TANK, which matches the colour scheme of your surroundings and has a capacity suitable for you.

2. measure the diameter of the downpipe and select a suitable RAINWATER COLLECTOR .

3. match the diameter of theconnecting hose between the collector and the tank (most collectors have an outlet of 32 mm)

4. match the TANK with the colour of the rainwater tank.

If you wish, you can equip the set with a DRAIN HOSE to empty the tank during winter.

INSTALLATION DIAGRAM OF THE COLLECTOR

This short guide will help you choose the right capacity for your underground rainwater storage tank - without difficult formulas. We will show you how to estimate your needs, count the amount of water from your roof, select the capacity and plan a simple garden installation.

Step 1: Determine what you will use the rainwater for.

List the uses: watering the garden, flushing toilets, laundry, washing the car, housework. This will allow you to estimate the real need for water in a typical week.

Garden watering - take a guideline of 20-25 l/m² per month per season.
Toilet flushing - approximately 35-50 l/person/day.
Laundry - approx. 15-20 l/person/day.

It is advisable to select a tank for 2-3 weeks of typical use - in practice there is no point in storing 'for the whole year'.

Step 2: How much water you collect from the roof (no complicated formulas)

In simple terms, assume: annual rainfall × roof area × runoff coefficient. For most roofs, you can assume a coefficient of around 0.9 (depending on the roofing and the layout of the gutters).

Brief example: calculation of possible rainwater yield

Roof 120 m², annual rainfall ~600mm (approx. 600 l/m²). Estimate: 120 × 600 × 0.8 ≈ 57,600 l/year. This figure helps to select the capacity for a period without rain. And a period without rain can last for 3 weeks. Therefore, you must divide the result by 21 days. That is: (57600 l /365 days)*21 days = 3314 l, the result according to the estimation should be taken as a minimum. Therefore then we choose 4000l , 5000l, 6000l tanks - because of how we will use the rainwater.

Step 3: Selecting the tank capacity

It is most practical to select a tank that will store a supply of water for 2-3 weeks of your needs.

Schemat obliczania pojemności zbiornika na deszczówkę – opad roczny × powierzchnia dachu × współczynnik spływu
How to calculate capacity: annual rainfall × roof area × runoff coefficient ≈ annual amount of rainwater to be collected.

2000-3000 l - small garden, 1-2 people.
4000-6000 l - family of 3-4 people + garden 200-300 m².
8000-10 000 l - larger garden, intensive watering. 300 m² - more , and with automatic watering.

But you will do this more precisely using the selection calculator below:

If you prefer, open the calculator in a new tab: Tank selection calculator. If you have any problems, please contact our customer service.

Step 4: Tank selection - material

In detached houses, underground rainwater tanks are the best choice - they do not take up space in the garden, provide stable temperatures, no water freezing and allow larger capacities without affecting aesthetics.

The best material is PE, HDPE, MDPE plastic - it is lightweight, corrosion resistant, easier to install and above all airtight for many years .
It is worth paying attention to water and ground conditions. If the ground water level is high or the soil is clayey, flat tanks such as the F line, Bolt, Eco line Slim, etc., are the best choice.
On the other hand, if the conditions are normal, any solution can be used. If you have any problems, please contact our customer service.

Step 5: Simple installation in the garden

The simplest arrangement: gully filter in front of the tank or basket filter, underground tank, floating intake, automatic pump and point of use (tap). This makes watering convenient and economical.

Podlewanie ogrodu deszczówką ze zbiornika podziemnego – przykład zastosowania w domu jednorodzinnym

Summary:

Estimate the weekly consumption (garden + house).
Calculate the roof potential (rainfall × area × ~0.9) and divide by 365 days and multiply by 21 days ( 2-3 weeks of drought).
Select an underground storage tank taking into account the yield (calculated from the roof area) and contrast it with the consumption e.g.: water in the garden. Select capacity
Add a filter, pump and collection point, or choose an off-the-shelf solution: Rainwater systems for the garden

FAQ: How to choose a rainwater storage tank

What capacity to start with?

For example: family of 3-4 people + garden of 80-150 m² → 4000-6000 l usually works well. Larger garden / intensive watering → 8000-10 000 l. Verify with the calculator above.

Is it possible to supply toilets with rainwater?

Yes - using a suitable system (rainwater control unit/automatic switchover) and filtration.

What about excess water?

Plan an overflow to an infiltration or rainwater drain in accordance with local regulations.

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Paweł T.

2025-05-29

Zbiornik

Zbiornik ma świetny kolor, idealnie pasuje do dachówki na moim domu.

Recommended to buy: Yes

This product is also available in pack

Nazwa	Capacity	Unit price
Rainwater tank Amphora	240l	~~615.00 PLN~~ – 5% 584.25 PLN Brutto 475.00 PLN Netto
Rainwater tank Amphora	300l	~~1,045.50 PLN~~ – 5% 993.23 PLN Brutto 807.50 PLN Netto
Rainwater tank Amphora	500l	~~1,353.00 PLN~~ – 5% 1,285.35 PLN Brutto 1,045.00 PLN Netto