Rainwater Harvesting Diverters & Filters

How to Filter Rainwater from a Roof

rainwater-harvesting-4-step-process-3ptechnik.original.jpg

When you collect water from your roof it is important to ensure that it is filtered before it is stored in water tanks so that it is as clean as possible and doesn't go sour or smelly before you use it.

This article explores the four main components you need if you want to use the rainwater in non-potable situations in a professional Rainwater Harvesting System, whether the water is stored in an above ground tank or one buried in the ground. (Extra steps will need to be taken if you want to further filter the rainwater for drinking). Read about the four steps of Rainwater Harvesting.

Filter By

Products List

Sort By:

Display Type:
Filters
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Calmed Inlet for 6" pipes for ensures water collected in your rainwater tank is not disturbed by sediment at the bottom of the tank.

    Calmed Inlet - 6"

    £96.00 including VAT
    £80.00 excluding VAT
    How to Keep Rainwater Clean in Large Water Storage Tanks Ideal for use in large-scale rainwater harvesting installations. It is suitable for DN150 plastic pipe (6" pipe). Max outer dimension of pipe 160mm. When you harvest rainwater, it is important to...
    Qty in Cart: 0
    Quantity:
    Price:
    £96.00 including VAT
    £80.00 excluding VAT
    Subtotal:
  • Siphon Filter - combined Filter and Overflow Siphon for Rainwater Harvesting Tanks.
    Sale 58%
    Sale 58%

    Siphon Filter

    £150.00 including VAT
    £355.00
    RRP: £355.00
    £125.00 excluding VAT
    £295.83
    RRP: £295.83
    Combined Rainwater Tank Filter and Overflow Siphon The Siphon Filter is a compact rainwater filter with an in-built Overflow Siphon for installation in a concrete or plastic rainwater tanks. Ideal for converting tanks like old septic tanks and cess...
    Qty in Cart: 0
    Quantity:
    Price:
    £150.00 including VAT
    £355.00
    RRP: £355.00
    £125.00 excluding VAT
    £295.83
    RRP: £295.83
    Subtotal:
  • Duo Overflow Siphon for thick walled Rainwater Tanks.

    Duo Overflow Siphon

    £92.99 including VAT
    £77.49 excluding VAT
    Duo Overflow Siphon for thicker walled Rainwater Harvesting Tanks The Duo Overflow Siphon design has a built in rodent and odour barrier. It is best used in thicker walled rainwater harvesting tanks (ie concrete tanks) with 4" grommets and seals (not...
    Qty in Cart: 0
    Quantity:
    Price:
    £92.99 including VAT
    £77.49 excluding VAT
    Subtotal:
  • 3P Basic Overflow Siphon with Circular Sprung Steel Rodent Barrier

    Basic Overflow with Circular Sprung Rodent barrier

    £68.99 including VAT
    £57.49 excluding VAT
    Basic Rainwater Tank Overflow with Odour Trap and Rodent Barrier The 3P Basic Overflow Siphon has a rodent barrier made of sprung stainless steel. This prevents small animals from entering your tank. The"U-Bend" shape of the Siphon also serves as an...
    Qty in Cart: 0
    Quantity:
    Price:
    £68.99 including VAT
    £57.49 excluding VAT
    Subtotal:
  • 3P Irrigation Flat Filter for filtering rainwater from roofs upto 800m2.

    Irrigation Flat Filter for Roofs up to 800m2

    £549.36 including VAT
    £457.80 excluding VAT
    Water Tank Filter for Roof areas up to 800m2 Rainwater filter for large roof areas and large rainwater tanks. The 3P Irrigation Flat Filter is installed in the rainwater storage tank and has no height difference between inlet and outlet. The unique...
    Qty in Cart: 0
    Quantity:
    Price:
    £549.36 including VAT
    £457.80 excluding VAT
    Subtotal:
  • Twin Filter for Industrial Rainwater Harvesting Installations.

    Twin Filter for Roofs up to 800m2

    £720.00 including VAT
    £600.00 excluding VAT
    Water Tank Filter for Roof areas up to 800m2 Rainwater filter for installation before rainwater tanks as part of a large rainwater harvesting filter system. Install either in an underground chamber (1000mm diameter) or attached directly to a wall in a...
    Qty in Cart: 0
    Quantity:
    Price:
    £720.00 including VAT
    £600.00 excluding VAT
    Subtotal:
  • Total: items /

Adding your products to cart