UV clarifiers pass pond water by an ultraviolet lamp to help control green water. This collection includes the Aquascape UltraKlear UV Clarifier, the Pondmaster Submersible & Inline UV Clarifier, and Aquascape UltraKlean pressurized biological pond filters and filtration kits.
They're for backyard ponds, koi ponds and water gardens. The right unit depends on your pond volume and pump flow, so call or text 1-855-752-5795 for sizing help from our team.
UV works on the algae you can't net out; it does not remove the nutrients feeding it. Pair a UV unit with pond filtration, the algae-control program, and a properly sized pond pump for lasting clarity.
Frequently Asked Questions
What's the difference between a UV clarifier and a UV sterilizer? The hardware is the same — the difference is UV dose. At higher flow rates the unit acts as a clarifier, killing suspended green-water algae. Slow the flow and the longer exposure sterilizes, also affecting some bacteria and parasites. Most pond installations run in clarifier mode.
Will a UV clarifier kill string algae? No. UV only affects single-cell algae suspended in the water passing through the unit. String algae attached to rocks and liner needs the approach in our algae-control collection.
When should I run a UV clarifier in Canada? Green water peaks with sunlight and warmth — run the UV from spring start-up through fall. Remove and store the unit before freeze-up, and replace the bulb each season, since UV output drops well before the bulb visibly fails.
Do UV clarifiers harm fish or beneficial bacteria? UV treats only the water passing through the sealed chamber, so fish are unaffected, and so are the bacteria colonised on your filter media and pond surfaces.
Customer reviews
What pond owners say about us
★★★★★4.8 out of 5 based on Google reviews
★★★★★
I highly recommend the Fountain Depot. Ryan and his team are incredibly knowledgeable and timely. We sought a floating fountain and underwater lights for our client, and Ryan delivered precisely what our client was desiring. The Fountain Place continues to maintain the fountain, and we have had zero issues.
Brandon · Google review
★★★★★
Once again Ryan, Fountain Depot, has provided excellent service and maintenance on our 2 floating fountains. Fountain Depot resolves any issues quickly, effectively and professionally. Highly recommended!
Lee Cornish · Google review
★★★★★
I have had the pleasure of working with Ryan from Fountain Depot for the past year +. He designed and rebuilt our fountain from the ground up. They are a very knowledgeable team of guys. Our condo community could not be happier with the job they did for us. Highly recommend them for all your fountain needs.
Matt J · Google review
★★★★★
Ryan and the team are truly exceptional - they really know their products and match that knowledge with amazing service. We have referred them to multiple friends for residential installations, and they have all shared the same positive experience as we have. Even when we had some repair issues, Ryan was quick to find a solution and get our fountain back to us in perfect condition.
Lindsay Urbanek · Google review
★★★★★
Ryan and the Fountain Depot team are phenomenal! I highly recommend them for all of your fountain repair and maintenance needs. Our water feature looks better than ever. They walked us through the repair process, made some fantastic recommendations, and provided us with a schedule for recommended maintenance.
Kathryn Pettitt · Google review
★★★★★
If you have a pond, waterfall or fountain problem, I consider this THE place to go. I am a repeat customer over a decade, and highly recommend these folks. Ryan and his staff have made quick and creative-solution work of our pond and pump systems.
