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Rainwater tank set Helena

  • -5%

Rainwater tank Helena

Capacity
Colour
  • -5%

Tap with external thread ¾ "

Colour
  • -5%

Connection set collector-tank

Diameter
  • -5%

Rainwater collector with filter and valve

Colour
1,628.00 PLN 12%
1,432.64 PLN tax incl
1,164.75 PLN tax excl
The lowest price of this product in the last 30 days before the discount was 1,465.20 PLN gross
Delivery from 202.95 PLN
In Stock

Pack description

Decorative rainwater tank Helena 300l + Collector with valve and connection + Chrome or brass tap

Helena tank 300L

Decorative aboveground tank for rainwater

The Helena rainwater tank with a capacity of 300L is made of polyethylene. The tank is a true reproduction of a Mediterranean amphora, which perfectly complements Tuscan styled gardens. The tank has been prepared in a unique way, as one side of the tank has a deliberately rough and antique surface texture. In contrast, the other side is perfectly smooth - delicately finished. This dissonance is intentional and makes the tank more faithful to the antique original through its apparent imperfections. There is also a hole for a 3/4" tap on both sides. The tank is provided with a lower opening of 3/4" to completely release the water, so as to secure the tank for winter season as well as to connect the tanks in series. High quality polyethylene is resistant to UV radiation, so that the reservoir does not change its color in the sun.

To complete installation, you must choose your desired collector of rainwater (matched to the diameter and color of the gutter) and adjust the connection of the collector to the tank. All the elements you will find in our shop in accessories for rainwater.

Dimension

Volume [l]
Diameter [cm]
Height [cm]
300
78,00
120,00

Tap with external thread

Dedicated tap to the decorative tanks for rainwater

Tap with 3/4" male thread - Used for decorative rainwater tanks. Available in two versions, chrome or brass. It is characterised by high durability. The material from which it is made has anti-corrosive properties. As a result, it can serve for a long time without damage. 

Connection set

The connection tank with rainwater collector

 
It allows connect tank with the collector of rainwater. 25 cm hose length. Available in two different diameters of 25 mm and 32 mm. 32 mm diameter hose fits most collectors of rainwater. The combination of 25mm fits to the leaves separator with the function of filling, available on request. When ordering, please let us information about a diameter hose.

We recommend that you also take a look at our other offers, such as the Jigsaw Connection Kit.

Rainwater collector with filter and tap

Collector with filter and tap for rainwater install on rainwater pipe

The rainwater collector from 3P Technik collects rainwater from small roof areas (up to 50 m2) and retains large impurities such as leaves. Rainwater collector for connecting almost all pipes, circular (diameter 68mm-100mm) and rectangular sections (60mmx60mm). The set includes a hose connection from the connection set (32 mm diameter). Rainwater collectors have overflow function. They are equipped with a valve to regulate the amount of water flowing into the tank or even completely shut off. Available in two different colors brown and gray.

We also recommend our range of inox mesh filter collectors.

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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