When it comes to selecting the right filtration for your pond you will quickly learn that there are many options to choose from. Each type of filter has it’s pros and cons but what really matters is what you want from your pond- low maintenance, energy efficiency, natural looking, affordable. We want to help you make the right filtration decision by giving you some info on just one of the many types of filters available, ultra violet.
UV (ultra violet) filtration is a type of mechanical filter used by many pond owners. The primary function is to keep your pond water crystal clear, but there are other benefits to it as well. To understand the benefits of a UV filter you must first understand how it works. An ultra violet light emits a germicidal ray that alters the genetic make up of most organisms that are exposed to the light. As the water passes through the tube that houses the light, those organisms in the water that are exposed to the light, such as bacteria, parasites, and algae spores, are zapped and eventually die. An over abundance of algae spores is the cause of green water conditions that a lot of ponds suffer from. Killing the algae spores with the UV light means almost instant clear water. If the bulb is strong enough, and the water is slow enough, the filter will eliminate practically every living organism that passes by it. That is when the filter goes from being a water clarifier to being a water sterilizer.
Although there are many benefits to having a UV filter, there are some negative points that you must consider before installing one in your own pond. An ultra violet filter does not discriminate about what it kills. This includes beneficial bacteria. Beneficial bacteria is important in any living pond to create a healthy, “balanced” environment. Although there is beneficial bacteria growing on the rocks, plants, and filter media in your pond, there is also a substantial amount floating free in the water. When it is exposed to the light it is destroyed. When the beneficial bacteria is eliminated the pond relies upon this mechanical filter to stay clear. The bulb’s intensity tends to diminish over time and the life expectancy on the standard UV bulb is about one year. The initial cost of a UV filter is higher than most other types of filters and the UV bulbs will need to be replaced about once a year. For more information on ultra violet filters, or to find out how to install one on your pond, give us a call. (661)836-3825.