Rainwater tanks

Underground rainwater tanks - a full range of monolithic underground tanks for rainwater collection. The rainwater tanks are manufactured by rotational moulding, which ensures tightness for many years. The rainwater tanks in our range present different soil strengths and groundwater influences. We have rainwater tanks with capacities of 1,000l, 3,000l, 5,000l and even up to 70,000l.
 
Decorative rainwater tanks fit perfectly into the design of gardens and work well with smaller roof areas. To install the tanks, the rainwater collector must be matched to the diameter of the gutter and connected to the decorative tank. We have a range of different designs of decorative tanks, allowing you to match the shape, texture and colour to your own preferences.

Water distribution systems to the ground - are used when we need to transfer rainwater to the ground or protect the development system against excessive overflow after heavy rainfall (so-called emergency overflow).

The range also includes:

Drop Water Rainwater TankZestaw zbiornik na deszczówkę BarriqueZestaw zbiornik na deszczówkę Garden LakeZestaw zbiornik na deszczówkę Slim

Active filters

  • Brand: Rewatec

Basket filter

  • Rainwater filter baskets suitable for house systems
  • Suitable for underground rainwater tanks
  • Ideal for roof areas up to 350m2
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Price
323.00 PLN Regular price 340.00 PLN
262.60 PLN tax excl
Lowest price: 322.53 PLN 0%

Basket filter with inlet

  • Rainwater basket filter
  • Ideal for underground, flat tanks
  • Ideal for roof areas up to 350 m2
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Price
444.60 PLN Regular price 468.00 PLN
361.46 PLN tax excl
Lowest price: 444.22 PLN 0%

Mega hanging filter basket

  • Rainwater filter basket
  • For roof surfaces max. 627 m2
  • Ideal for modernizing existing tanks
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Price
841.70 PLN Regular price 886.00 PLN
684.31 PLN tax excl
Lowest price: 841.23 PLN 0%

Cover Topcover

  • Suitable for all Rewatec tanks and Octagon tanks
  • Black and green colours
  • Designed for pedestrian traffic
  • Max. continuous load 150 kg
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Price
508.25 PLN Regular price 535.00 PLN
413.21 PLN tax excl

Cover Twincover with water intake

  • Suitable for all tanks from Rewatec and Octagon
  • Black and green colours
  • Version for pedestrian traffic
  • Equipped with rain water collection
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Price
1,014.60 PLN Regular price 1,068.00 PLN
824.88 PLN tax excl

Basket cartridge for Maxi Plus filter

  • The filter basket into the filter Maxi Plus
  • Thoroughly cleans rainwater
  • Easy to clean
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Price
311.60 PLN Regular price 328.00 PLN
253.33 PLN tax excl
Lowest price: 311.71 PLN 0%

Cover TwinCover without water intake

  • Designed for pedestrian traffic
  • Black and green colours
  • Fits all Rewatec and Octagon tanks
  • Made of durable polyethylene
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Price
695.40 PLN Regular price 732.00 PLN
565.37 PLN tax excl
Lowest price: 634.60 PLN +10%

Steel cover

  • Suitable for car traffic up to 3.5 t
  • Fits Rewatec and Octagon tanks
  • Made of stainless steel
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Price
1,466.80 PLN Regular price 1,544.00 PLN
1,192.52 PLN tax excl
Lowest price: 1,465.85 PLN 0%

Maxi underground filter

  • Underground rainwater filter
  • Ideal for rainwater harvesting and infiltration systems
  • Suitable for roof areas of max. 350 m2
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Price
1,183.70 PLN Regular price 1,246.00 PLN
962.36 PLN tax excl
Lowest price: 1,183.23 PLN 0%

Extension pipe VS 20

  • Polyethylene rising pipe in black and green
  • Height 235 mm, diameter DN 600
  • Suitable for Rewatec and Octagon
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Price
494.95 PLN Regular price 521.00 PLN
402.40 PLN tax excl

Extension pipe VS 60

  • Polyethylene extension pipe in black and green
  • Suitable for Rewatec and Octagon tanks 
  • Height 635 mm, diameter DN 600
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Price
739.10 PLN Regular price 778.00 PLN
600.89 PLN tax excl

Maxi Plus underground filter

  • Underground rainwater filter
  • No difference in height between the inlet and outlet
  • For roof surface max 500 m2
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2 Review(s) 
Price
2,479.50 PLN Regular price 2,610.00 PLN
2,015.85 PLN tax excl
Lowest price: 2,478.55 PLN 0%

Rising pipe with basket filter

  • Set the riser tube integral with the filter
  • Suitable for all underground storage tanks from Rewatec
  • For the catchment area up to 350 m2
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Price
2,627.70 PLN Regular price 2,766.00 PLN
2,136.34 PLN tax excl
Lowest price: 2,627.44 PLN 0%

Distance ring 60 cm

  • Suitable for tanks from Rewatec and Octagon
  • Height 60 cm, diameter DN 600
  • Made from high quality polyethylene
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Price
677.35 PLN Regular price 713.00 PLN
550.69 PLN tax excl
Lowest price: 676.88 PLN 0%

Riser pipe with flow filter

  • Set the riser tube integral with the filter
  • Suitable for all tanks from Rewatec
  • Recommended for roof areas up to 200 m2
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Price
2,938.35 PLN Regular price 3,093.00 PLN
2,388.90 PLN tax excl
Lowest price: 2,937.89 PLN 0%

Gasket DN 600 for manhole

  • Seal for Rewatec tanks
  • Protects the inside of the tank against pollution
  • The seal between the riser tube and the distance ring
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Price
149.15 PLN Regular price 157.00 PLN
121.26 PLN tax excl
Lowest price: 148.68 PLN 0%

F-Line rainwater tank

  • Underground, flat rainwater tank
  • Tanks for difficult ground conditions
  • Tank volume from 1500 to 7500 l
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2 Review(s) 
Price
4,164.80 PLN Regular price 4,384.00 PLN
3,386.02 PLN tax excl
Lowest price: 3,945.60 PLN +6%

Extension element set

  • TopCover, VS60 ascending pipe and DN600 gasket included
  • Compatible with Rewatec and Octagon tanks 
  • Made of durable polyethylene
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Price
1,372.75 PLN Regular price 1,445.00 PLN
1,116.06 PLN tax excl
Lowest price: 1,372.99 PLN 0%

Neo rainwater tank

  • Underground, flat rainwater tank
  • Monolithic tank with a 35-year warranty
  • Capacity from 1500 to 40000 litres
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Price
3,848.45 PLN Regular price 4,051.00 PLN
3,128.82 PLN tax excl
Lowest price: 3,645.90 PLN +6%

Rewatec car traffic set

  • Suitable for Rewatec tanks: BlueLine II, F-Line, Neo.
  • Compatible with Octagon tank
  • Height 60 cm
  • Max. 2.2 t axle load
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Price
2,556.45 PLN Regular price 2,691.00 PLN
2,078.41 PLN tax excl
Lowest price: 2,474.80 PLN +3%

Absorption box 230L Rewatec

  • Infiltration and draining rainwater into the ground
  • Management of rainwater
  • Infiltration treated wastewater
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Price
437.95 PLN Regular price 461.00 PLN
356.06 PLN tax excl
Lowest price: 411.83 PLN +6%

Igloo absorption well 900L

  • Drainage and discharge of rainwater into the ground
  • The well can be extended
  • Capacity 900 l
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Price
1,482.95 PLN Regular price 1,561.00 PLN
1,205.65 PLN tax excl
Lowest price: 1,482.00 PLN 0%

Blueline II rainwater tank

  • Blueline underground rainwater tank
  • Monolithic tanks with 25 years guarantee
  • Tank volume from 2600 to 10000 l
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2 Review(s) 
Price
4,736.70 PLN Regular price 4,986.00 PLN
3,850.98 PLN tax excl
Lowest price: 4,487.40 PLN +6%

Profi Igloo 900L well

  • Rainwater management
  • Version for car traffic or green area
  • Capacity 900 l
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0 Review(s) 
Price
2,422.76 PLN Regular price 2,633.43 PLN
1,969.72 PLN tax excl
Lowest price: 2,370.09 PLN +2%

BlackLine tank

  • Underground tank for rainwater and sewage
  • The strongest polyethylene tank
  • Capacity: 5,200 l, 7,600 l and 10,000 l
  • The possibility of foundation in groundwater, ground covering up to 1,5 m
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Price
15,951.45 PLN Regular price 16,791.00 PLN
12,968.66 PLN tax excl
Lowest price: 15,951.43 PLN 0%
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Rainwater tanks contribute not only to savings on tap water, but also have a huge impact on the protection of the environment and water resources. Local water retention enables later use of rainwater, protection of investment against flooding and irrigation of areas during periods of drought.

The Aquatechnika store offer is the perfect place to buy a rainwater tank. We guarantee delivery throughout Poland - Warszawa, Kraków, Wrocław, Poznań, Szczecin, Lódź, Katowice, other and foreign deliveries. In our offer you will find products of renowned world brands and Polish producers at attractive prices. The range of products includes tanks from 1000l to 75000l capacity, as well as large commercial installations on an individual request. Before making your selection, we invite you to check attractive offers and contact advisers. We offer the lowest prices and the opportunity to negotiate.

FAQ

What is the largest capacity of a rainwater tank?

We have a wide range of rainwater tanks. The shop offers tanks with a capacity of up to 30 m3. It is also possible to order larger volumes on individual request.
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Are polyethylene tanks durable?

Plastic - polyethylene - is a material that is widely used in the industry. It is characterised by its high resistance to adverse external conditions. It does not corrode or fade when exposed to UV radiation. It is also resistant to mechanical damage. This makes the tanks airtight and very durable. This guarantees many years of trouble-free operation.
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Can the tanks be installed in drivable ground?

This is possible if a suitable retrofit for the specific tank is used. For this purpose, a concrete band should be constructed to relieve the pressure on the rainwater tank. This will reduce the pressure on the walls to acceptable values. Special covers and extensions for vehicle traffic are also dedicated to the tanks.
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Can tanks be installed in ground water?

Yes, but only selected models of rainwater tanks. Special variants of flat tanks are dedicated to unfavourable ground-water conditions: Octagon, Neo, F-Line. Such rainwater tanks can be installed in ground water up to a set level, following the manufacturer's recommendations.
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Can tanks be installed in low permeability soils?

This is possible with specially designed flat rainwater tanks: Octagon, Neo, F-Line. They can be placed in heavy, impermeable soils (clay, silt and clay), following the manufacturer's instructions in the manual.
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Can a pump be put in the rainwater tank?

Yes, it is possible. When you equip a rainwater tank with a pump, you get a system for rainwater management. The shop offers ready-made sets for the use of rainwater in the garden as well as in the house and garden, with selected pumps.
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Does the water in the rainwater tank freeze?

This depends on the type of tank. In the case of an underground rainwater tank, the water does not freeze, as it is below the frost line. Above-ground tanks, on the other hand, have to be emptied during the winter because the freezing water could make the tank damage.
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Does the rainwater tank have to be cleaned?

It is accepted that rainwater tanks should be cleaned 1 to 2 times a year. The dirt that accumulates during operation promotes the growth of bacteria, which are dangerous to health. Over time, the tank can fill with algae and gradually become overgrown. Special chemicals are used to clean the rainwater tank and then rinsed.
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Where to discharge the water from the emergency overflow?

The water from the emergency overflow should be infiltrated into the ground if the ground conditions allow it. In addition, the water can be discharged into a drainage ditch or other nearest watercourse.
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Do you have to take the pump out of the rainwater tank for the winter?

The pump should be removed from the above-ground rainwater tank, as the water freezes during the winter. Servicing can then be carried out, cleaning the pump and lubricating the working parts. In the case of underground rainwater tanks, it is not necessary to remove the pump, as it is below the frost line.
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What is the maximum depth at which rainwater tanks can be installed?

The installation depth depends on the specific model of rainwater tank, e.g. from 0.4 m - Bolt tank to 1.5 m - F-Line. The depth of the tank installation also depends on the depth of the inlet pipe. However, be sure to follow the manufacturer's recommendations.
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