TEST OBJECTIVE:            To evaluate the effects of ionisation on the pH levels in fish rearing tanks.

TANK SYSTEM:     Capacity 2,500 gallons of fresh water, circulating at approximately 7,500 gallons per hour. The tank feed and circulation pipework is 4” n.b plastic

ECOFLOW UNITS:            Four Ecoflow H2Flow water-conditioning units were initially installed onto the water circulation pipework. A further H2Flow was installed during the trial.

TEST DATA:            After initial discussions  the units were installed during February 1997 when the pH level had fallen to 6.2. Over the next seven days the pH increased to 7.1. Unfortunately there then followed a series of water changes and other variations, however whenever the pH dropped the Ecoflows gradually brought it back up to around 7.0 as can be seen by the accompanying charts for the period April 1st to May 31st.  It should also be pointed out that during the trial period (Feb - June) no pH corrective chemicals were used at all.

Initially the pH increased by 0.1 per day and it was agreed to install a further Ecoflow to try and increase the rate of return. After installing another Ecoflow the pH correction rate improved to 0.2, which was considered to be ideal.

As conclusive proof that the Ecoflow water conditioners were responsible for bringing the pH back up to an acceptable level after it had dropped, the units were removed on the 16^th April. On the 22^nd April the pH started to drop and by the 26^th April it had bottomed out at 6.18. The Ecoflows were reinstalled on the 30^th April with the immediate effect of the pH rising, as can be seen by the attached charts.

CONCLUSION:        Having completed the trial it is quite apparent that the H2Flow water conditioning units have the desired effect of increasing the pH to an acceptable level, thereby removing the need to introduce additional pH controlling chemicals to the water.

Case Reports - Fish Farms & Ponds

Since fitting H2flow to the circulatory system of my garden pond I’ve never seen the water so beautifully crystal clear.

The fish have been breeding prolifically and the young survived the winter in far greater numbers than usual, in a healthy condition, even though a Kingfisher now visits regularly.

A Vinton

I have put an H2flow on my garden pond; 3500 gallons and home to about 30 Koi carp. It not only helps to keep the Thread Algae (blanket weed) under control, as it can not get 'root' into the reformed calcium crystals; but it also helps the water quality in general. (I have about 15 new baby fish in the pond this year). My filter system consists of: a 2000gal. per hour pump, ultraviolet-light filter, into a 'Green-machine' (brush/foam block and biological) filter box and then a waterfall back into the pond.

Chris Jordan

One of my businesses involves fish & pond maintenance, which I do on a weekly basis for a number of customers. Ponds vary in size from an 80 gallon internal display well, with fish, to a 50,000 gal pond with show Koi.

Over the years all have had problems with blanket weed and algae. Three years ago I fitted one H2Flow to the 19mm submersible pump feed hose, the pump runs continuously circulating 80 gallons back into the internal well, since fitting I've not had any problem with algae, also the pump and filters do not get as blocked.

I've also since fitted H2Flow to other larger ponds, and also had very good results, but this has always depended on what the customer wants to spend on the product. Unlike a water main where the H2Flow needs to charge the water as it passes, a pond with a continuous running pump, will be circulating the same charged water. But with this in mind, I have found that an external pond, up to 1000 gallon, in full sunlight, (with no UV filter) will require at least two H2Flow's fitted, to help solve the problem.  I can confirm that fitting H2Flow WILL help reduce the problem of algae & blanket weed.

Peter Payne

Pond pH

I built a 14000 gallon fish pond in March 2002 and put in 20 Koi Carp of various sizes from 4” – 30”. Over the following months I could not stop the pH level from fluctuating to as low as 6.2.

In late July, 2002 I decided to try an H2Flow on the circulatory system before the filter. Since then the pH has not varied and is a constant 7.6, algae is no longer a problem and the water quality seems better altogether.

I am so pleased with the H2Flow I have put one on my 300 gallon quarantine tank with my pet Chagoi in.

Alan Shuttleworth