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Manufacturer Premier Tech Water and Environment GmbHAm Gammgraben 219258
BoizenburgGermanyinfo.ptwe.de@premiertech.com
The manufacturer of the Rewatec brand of products is Germany-based Premier Tech Water & Environment GmbH, trading as Rewatec GmbH. This company designs, manufactures and supplies rainwater management systems, water retention and infiltration systems, underground and aboveground tanks, drinking water tanks, small-scale biological wastewater treatment plants, also associated equipment and accessories. Rewatec products are used in private, horticultural, municipal and industrial installations.
The products are manufactured from high quality plastics - mainly polyethylene (PE) - using technologies that ensure durability, tightness, resistance to ground and environmental conditions. Rewatec ensures that the production process is subject to quality controls, that the materials used meet the standards required by EU law and that the products are tested before being released for sale. The company ensures that technical documentation, installation and use instructions are complete and that products are properly labelled.
Manufacturer's declaration of conformity with GPSR: Premier Tech Water & Environment GmbH declares that Rewatec brand products are subject to the general safety requirements of the GPSR Regulation, that they have been designed, manufactured and tested with due care and that they comply with all relevant European Union standards for safety, health and environmental protection.
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Garden system Standard with rainwater tank BlueLine II Rewatec
High-quality BlueLine II rainwater tank with automatic pump and filter for garden irrigation
Functional description:
Rainwater is collected from the roof via a gutter system and then fed through a drain pipe into the tank. The water is cleaned on a fine mesh basket filter and then flows into the tank (by gravity). The water distribution system functions with an automatic pump and allows the garden to be watered using a garden hose.
Easy backfilling and compaction with sand, gravel or excavated material
Can be driven over by truck (load class SLW 30)
Can be placed in ground water up to 1/3 of the tank height
25-year warranty - Made in Germany
Tank dimensions
Volume
Manhole diameter
Overflow
Inlet
Body height
Height with flange
Length
Width
Weight
[l]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[kg]
2600
600
560
410
1330
1590
2400
1360
90
5200
600
575
425
1980
2250
2400
2010
160
7600
600
385
235
2250
2330
2765
2310
220
10000
600
385
235
2250
2330
3400
2310
340
Tank cover - Twin Cover with intake
The tank cover has a smaller inner lid in it for easy and quick access to the water intake.
VS 60 ascending pipe extension with gasket
Height 635 mm, Ø 600 mm. Lip seal used between the VS 20 / VS 60 ascending pipe or the spacer ring. Protects the rainwater storage tank from outside contamination.
Filter basket
Recommended for roof areas of up to 350m2. Dimensions: Ø 410 mm, height 160 mm fine filter (filter mesh size 0.9 mm). Fastening ropes and a hook are included with the basket.
Pressure hose
Pressure hose used to connect the pump to the water intake, located in the tank lid.
Pedrollo TOP Multi Tech II pump *.
TOP MULTI-TECH pumps are recommended for pumping clean water and liquids that are not aggressive to the pump material. Due to their high efficiency and reliability, the pumps are used to supply drinking water tanks and wells, to draw rainwater from cisterns for water gardens or for use in irrigation systems, etc. A switch inside the pump starts or stops the pump automatically when the tap is opened or closed.
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.
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:
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.
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
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.
Wytrzymaly
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