Quick Links


Rain Director Wins Green Apple Award

The Rain Director System Wins
Green Apple Award 2013


Product Innovation Award 2013 - Rain Director Wins First Place

The Rain Director System Wins
Home Building and Renovating
Product Innovation Award 2013!


Contact Details

Rainwater Harvesting Ltd

Rainwater Harvesting Ltd
Unit A Harrier Park,
Southgate Way
Peterborough
Cambridgeshire
PE2 6YQ

+44(0)1733 405 111

info@rainwaterharvesting.co.uk


Our Systems Tank Size Calculator Visit Our Webshop

Tank Size Calculator

The tank size calculator service is provided by RainWater Harvesting so you can establish the size of tank you might decide to install. You will need to know the approximate dimensions of your house in metres. If in doubt, just pace out the house length and width.

Insert your building's data in the yellow boxes.
From the roof area of your property, you assess the amount of water available, and equate it to the amount you will use.

If you would prefer us to do the calculation for you, go to our Contact form, select "Tank Size Calculator" as the subject, and supply the information requested.


Collectable Roof Area (m²)

Main Building

 Width: Length:

Rain Collection Area:

0 m²

Extension one

 Width: Length:

Rain Collection Area:

0 m²

Extension Two

 Width: Length:

Rain Collection Area:

0 m²

Extension Three

 Width: Length:

Rain Collection Area:

0 m²

Or the total roof area, if you already know it: m²

Total area of collectable roof space:

0 m²

Select Your Region

Average rainfall per year in your region:

0 L

Collectable rainwater per annum in litres - discounted by 20% to account for water loss

YIELD

0 L

Use of rainwater in the building

Washing machines and toilets are the main usage for rain water in domestic systems.

Number of people or bedrooms in the building -
people:
bedrooms:

0 Cycles

0 L

0 Flushes

0 L

Outdoor use in litres, per person per day (recommended 5 litres per person per day)

0 L

Amount of water you require every day

0 L

Amount of water you require every year

DEMAND

0 L

Final Figures
How many days drought protection do you need? Typically 21 (18 minimum)
Capacity of water storage in litres required for drought protection

0 L
The lesser of YIELD (blue) or DEMAND (green) per annum

0 L
Therefore, volume of rainwater storage required

0 L

Conclusion
Is there sufficient roof water available:

Please Complete the Form
Recommended tank size from our shallow dig range: F-Line Range:

[F-Line Tank Range]
Select the carat range if you require a deep dig tank: Carat Range:

[Carat Tank Range]

Please save the form. This allows you to return later without losing your entered data.
We do not keep any information you enter here and all data saved is only temporary.