Bryan Bateman, AKCA (associated Koi clubs of America) certified Koi Judge
“We had achieved what we thought to be the highest level of water quality possible with existing water treatment technology – this being zero ammonia, zero nitrites, zero nitrates – with stable pH and alkalinity parameters as well. One nagging problem remained however – organics. There seemed no way to eliminate them altogether. Water changes were not accomplishing much. At certain times of the season, small bubbles would remain at the base of the waterfall, and float as little islands around the pond. Very aggravating! We had begun to think that we would have to live with this, or get rid of half of our koi, which we were not about to do.
We happened to notice an ad at the top of the opening page of our favorite koi BB (koimag of course) for a newly designed unit called a Clarifier, which claimed to eliminate organics. I placed an order for one post-haste, and awaited it with anxious anticipation. The unit arrived from Purdin Koi in Texas and we installed it about 15 feet from our pond, raised up so the return could be via gravity. We fed it with water from our skimmer to maximize the organics concentration to the Clarifier.
The result was truly amazing. The foam began to form immediately. Not just small amounts, but HUGE amounts. The results have been far better than we could have ever expected. We still produce foam, which falls nicely out of the side of the unit and onto the lawn below. The clarity of our water has improved significantly, we see brighter colors on our koi, and, of course, no more aggravating bubbles. We have achieved pond water nirvana! The Clarity (ours is the CL-10) unit is most definitely the biggest improvement in pond water treatment technology since the Nexus Easy.”