For combined rainwater detention and rainwater harvesting

  • To guarantee retention of rainwater, a delayed drain is fitted in the channel with 0.05 to 2.0 l/sec. depending on the customer’s specifications and the retention or harvest volumes. In the event of heavy rainfall, the water level in the cistern rises above the max. water level (short term) and is drained into the channel at delayed speed using a floating drain choke.
  • This relieves the channel and the treatment works.
  • The water level can rise to the emergency overflow and sinks slowly back down again after the rain to the long-term max. water level. This rainwater can then be harvested.
  • We also construct and supply individual, special solutions.
  • This special type of rainwater harvesting is prescribed or subsidised in many communities. 

Advantages Platin XL flat tank:

  • Rotating tank dome to easily align the connecting lines
  • Available with a second tank dome as an option
  • Suitable for HGV loading up to a vehicle weight of 30 t (66138 lbs)
  • Flexible connection up to DN 300 (12")
  • Connection openings with prefitted DN 150 (6") lip seals
  • Tank height of just 125 cm (4' 1")
  • High-quality, integrated DN 150 (6") filter technology
  • Dome opening with stainless steel profile for precision fit and secure mounting
  • Connection fitting of up to DN 200 (8"), on tank dome of up to DN 300

Scope of supply: 

  • Platin XL flat tank
  • Retention set: floating choke drain, outlet fittings with emergency overflow, DN 100 (4") connection

Not included in the scope of supply:

  • Matching cover
  • Installation of optional Platin XL/XXL detention/retention filter package 2
  • Garden Comfort technical package

Advantages

Thought-out in every detail

Low installation depth
Low installation depth
Low installation depth

The minimal installation depth saves you time and money during installation.

Low weight
Low weight
Low weight

Tank installation made easy! The significantly lower weight of GRAF products compared to steel or concrete cisterns makes transport and installation easier.

Optionally with second tank dome
Optionally with second tank dome
Optionally with second tank dome

The GRAF XXL tank can optionally be equipped with a second tank dome.

Retention Plus
Retention Plus
Retention Plus

A combined retention/rainwater utilisation saves up to 50 % drinking water. The water can be used for garden irrigation, cleaning work and in the house also for flushing toilets and washing machines.

Ready for connection
Ready for connection
Ready for connection

With GARANTIA tank systems, the connection seals are already pre-drilled and lip seals are pre-assembled. This saves time and therefore costs during installation.

Dome opening with stainless steel profile
Dome opening with stainless steel profile
Dome opening with stainless steel profile

Dome opening with stainless steel profile for high fitting accuracy and mounting safety.

Individual connections possible
Individual connections possible
Individual connections possible

Flexible connections possible according to customer requirements on the tank dome up to DN 300 or on the end face up to DN 200.

Low installation depth

The minimal installation depth saves you time and money during installation.

Low weight

Tank installation made easy! The significantly lower weight of GRAF products compared to steel or concrete cisterns makes transport and installation easier.

Optionally with second tank dome

The GRAF XXL tank can optionally be equipped with a second tank dome.

Retention Plus

A combined retention/rainwater utilisation saves up to 50 % drinking water. The water can be used for garden irrigation, cleaning work and in the house also for flushing toilets and washing machines.

Ready for connection

With GARANTIA tank systems, the connection seals are already pre-drilled and lip seals are pre-assembled. This saves time and therefore costs during installation.

Dome opening with stainless steel profile

Dome opening with stainless steel profile for high fitting accuracy and mounting safety.

Individual connections possible

Flexible connections possible according to customer requirements on the tank dome up to DN 300 or on the end face up to DN 200.

Sizing

Volume [l]Length [mm]Width [mm]Height [mm]Weight [kg]order no.add to enquiry
10000490022501910460390329
15000750022501910710390330

calculated size Request for information

Technical details

Installation

max. earth covering [mm] (without groundwater, vehicle loading) 1500

Accessibility

Earth covering with loading capacity [mm] 700 - 1300
max. axle load [t] 2.2
max. vehicle weight [t] 3,5
max. vehicle weight with reinforced concrete slab [t] 60

Groundwater installation

Earth covering with groundwater installation [mm] 700 - 1500

Downloads

Accessory