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https://www.swelluk.com:443/velda-t-flow/ 
Velda T-Flow
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.
Products
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 |
Latest Customer Reviews
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Rating Date 10/07/2019 22:07pm Velda T-Flow 15
Did the job we needed very quickly. Algae dying within a day! -
Rating Date 13/03/2019 13:03pm Velda T-Flow 05
Just excellent, service price and delivery -
Rating Date 21/08/2017 07:08am Velda T-Flow 75
Does what it says on the box -
Rating Date 02/08/2016 07:08am Velda T-Flow 35
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 14/06/2016 12:06pm Velda T-Flow 05
outstanding. works really well as you could see results after only 24hrs. it's now been about 6 days as I write & results are briliant. it has got rid of all that green hairy stuff. wish I got it sooner -
Rating Date 18/08/2015 08:08am Velda T-Flow 15
So far so good, it is having an effect on the algae in the pool, time will tell how good it is.