Velda T-Flow

5 reviews

Velda introduces a revolutionary product which allows chemical free algae control. The Velda T-Flow works by realising a steady supply of copper ions to kill off both green water algae and blanket weed, whilst remaining completely safe for your precious fish. It also ensures your water becomes healthy and odour free whilst fitting discreetly between the pump and filter. And thanks to the intelligently controlled release of copper ions you won't have to worry about it damaging the plants that you actually want in your pond.


  • T-Flow 15 10% OFF With Code
    code: 126656 Out of stock (Notify me)
  • T-Flow 35 10% OFF With Code
    code: 126661 Out of stock (Notify me)
  • T-Flow 75 10% OFF With Code
    code: 126666 In Stock (Only 1 left!)

Product Information

Whether it's green algae or blanket weed, spell an end to your ponds algae infestation with the Velda T-Flow. Unlike most algae treatments, which rely on the use of chemicals to kill off the algae, the T-Flow works by the release of copper ions to naturally poison your ponds algae.

Controlled by a simple and user friendly interface, this ingenious device can fit discreetly between your pump and water filter, as not to be an eye sore.

It is also completely safe. Despite being naturally poisonous to the algae, the electrical pulses of the device which release the copper ions into the water are completely water friendly. Even if left on permanently the device is completely safe to humans, fish, wildlife and even to other plant life.

The anodes should be replaced as indicated, usually on a 12 monthly basis dependant upon use.

Key Features:

  • Easy to understand operating display
  • Using a process known as 'mineralisation' electrical pulses release naturally algae killing copper ions into the water
  • Can be discreetly installed
  • Encourages water oxygenation to become more healthy and odour free
  • Completely safe for humans, fish, plants, and wildlife in general
  • Even if used continuously the concentration of copper will never reach higher than 0.3 parts per million. Well within European safety standards

Product Pond Size Recommended Pump Size Inlet & Outlet Guarantee
T-Flow 05 5000L 2000 - 8000LPH 13/32mm 2 Years
T-Flow 15 3000 - 15000L 6000 - 10000LPH 13/32mm 2 Years
T-Flow 35 1000 - 35000L 10000 - 20000LPH 13/40mm 2 Years
T-Flow 75 20000 - 75000L 15000 - 25000LPH 13/40mm 2 Years

User Manual

Latest Customer Reviews

  • Rating
    Date 09/05/2020 10:05am
    Velda T-Flow 35
    Feefo Logo
    showed error fault when fitted unable to sort heard nothing from you since I sent you e mail
  • Rating
    Date 10/07/2019 22:07pm
    Velda T-Flow 15
    Feefo Logo
    Did the job we needed very quickly. Algae dying within a day!
  • Rating
    Date 21/08/2017 07:08am
    Velda T-Flow 75
    Feefo Logo
    Does what it says on the box
  • Rating
    Date 02/08/2016 07:08am
    Velda T-Flow 35
    Feefo Logo
    The plastic cradle on which the T-piece hangs is not man enough for the job. When the tubing fills with water, the combined weight is too much for the cradle and the slightest knock causes the unit to fall off. Furthermore the slots in the base of the cradle are at two different heights. No explanation why this is so. The plastic is very soft and the screw heads pull through when under pump load. In the end I supported the T-piece on two bricks - perfect.
    As to the performance of the system:- Only installed it yesterday.
  • Rating
    Date 18/08/2015 08:08am
    Velda T-Flow 15
    Feefo Logo
    So far so good, it is having an effect on the algae in the pool, time will tell how good it is.