Why Do You Need Both a Pre-Filter and a Backwashable Biological Filter
in a
Pondless Water Feature? ... After all, There Aren't Any Fish!
First: Why do you need a pre-filter?
- Leaves, blossoms, tree needles, lawn clippings, weed seeds, pine cones, animal fur, bird feathers to name a few things.
- Just like ponds, the water in pondless water features trap all sorts of wind-blown debris.
- Ponds, swimming pools, and hot tubs all use skimmers as a pre-filter to remove the debris that falls into the water - but outdated pondless systems use GRAVEL!
- The gravel does trap the debris, but you should ask yourself: "How do I remove the debris from the gravel?"
- The gravel in outdated pondless basins can only be cleaned by hand!
- Cleaning gravel by hand is difficult, and not much fun - so the result is gravel that doesn't get adequately cleaned .... so what happens to all the debris?
- Leaves and debris left in the gravel of outdated gravel pondless basins rots and decays down into the gravel which results in loss of water flow and a huge source of nutrients that feed algae.
- How do you clean the gravel then? You either remove all the gravel by hand and clean it, or you perform a "Basin-ectomy" and completely remove the outdated pondless gravel basin and upgrade to the ULTIMATE pondless system with Pre-Filter and HydroChamber™.
Second: Why do you need a backwashable vortex biological filter?
- Dust, pollen, bird waste, frog waste, nitrogen, acid rain, air bourne pollutants, and phosphates to name a few things.
- Just like ponds, the water in pondless water features trap all sorts of wind-blown and rain-dropped or irrigated dissolved organic debris.
- Outdated pondless gravel basins, and simple tank-based pondless systems do not process dissolved organics.
- Dissolved organics not processed by a backwashable waterfall filter simply recirculate through the pondless water feature .... but what happens to these dissolved organics?
- Unprocessed dissolved organics feed algae!
Recap:
Non-pre-filtered gravel based pondless systems trap debris in the gravel that becomes a huge nutrient source for algae.
Non-biologically filtered tank-based pondless systems do not process dissolved organics that become a huge nutrient source for algae.
The ULTIMATE pondless systems feature both a pre-filter and a backwashable vortex biological filter for the removal of algae feeding debris and dissolved organic matter for the cleanest possible pondless water feature.
