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Crystal Clear Water with a UV Clarifier

A UV Clarifier is a piece of equipment that treats your pond water with concentrated UV light, which helps keeps the water crystal clear. Murky water is often caused by single-celled algae floating in the water. The UV light kills this certain type of algae which greatly increases water clarity once gone. If installed correctly, Aqua Ultraviolet guarantees your green pond water will clear up in 3 to 5 days while using the device. Consider this piece of equipment if you want minimal pond maintenance, if you're suffering from murky green water or if your pond is subject to direct sunlight and warmer temperatures.

For information on How to Size a UV Clarifier and how the equipment works please scroll to the bottom of this page.  

 

 

Aqua Ultraviolet UV Clarifier Sizes
WattsClarifier Pond SizeClarifier Pump FlowSterilizer Pond SizeSterilizer Pump FlowPrice
81,500 Gallons1,000 GPH5-200 Gallons642 GPH$270.10
152,000 Gallons1,800 GPH200-500 Gallons700 GPH$296.80
254,000 Gallons2,000 GPH500-1,200 Gallons1,200 GPH$399.75
406,000 Gallons3,000 GPH1,200-2,000 Gallons2,900 GPH$568.50
576,500 Gallons3,250 GPH1,500-3,000 Gallons3,200 GPH$623.60
809,000 Gallons4,500 GPH2,200-4,400 Gallons3,678 GPH$998.50
1149,500 Gallons4,500 GPH2,200-4,400 Gallons3,900 GPH$1,211.70
12012,000 Gallons6,500 GPH4,400-6,000 Gallons4,080 GPH$1,504.85
16016,000 Gallons9,000GPH6,000-8,500 Gallons5,400 GPH$1,890.30
20020,000 Gallons10,000 GPH8,500-13,000 Gallons6,600 GPH$2,382.50
24025,000 Gallons12,000 GPH13,000-17,000 Gallons7,200 GPH

$2,871.00



Aqua Ultraviolet UV Clarifier Sizes
WattsPond SizePump FlowPrice
81,500 Gallons1,000 GPH$204.99
152,000 Gallons1,800 GPH$225.99
254,000 Gallons2,000 GPH$302.99
406,000 Gallons3,000 GPH$431.99
576,500 Gallons3,250 GPH$471.99
809,000 Gallons4,500 GPH$755.99
1149,500 Gallons4,500 GPH$917.99
12012,000 Gallons6,500 GPH$1,069.99
16016,000 Gallons9,000GPH$1,432.99
20020,000 Gallons10,000 GPH$1,804.99
24025,000 Gallons12,000 GPH

$2,174.99


Need to replace your Aqua UV Lamp? Click here 


Sizing a UV Clarifier 

Step 1. Determine Pond Size in Gallons

Firstly, you must figure out how many gallons you want to pump per hour in order to choose the best-sized UV Clarifier. Begin by determining your pond size; do this by recording the length, width and depth of your pond and inputting those numbers into our Pond Volume Wizard. This will give you the gallons of water in your pond.


Step 2. Determine Flow Rate

Next, you must determine how often you want to pump the entire contents of your pond. Generally speaking, if you have fish you will want to pump the entire contents of the pond a minimum of once per hour. If you don't have fish you can relax on that number a bit. Other considerations such as climate, the quantity of fish or how much debris will fall into the pond must also be considered when choosing a flow rate for your pond. For more in-depth detail visit out Choosing a Pump Page.


Now that you know how many gallons are in your pond and how many gallons you want to pump per hour, we can now start looking for a Clarifier that matches those specs. This brings us to another question: What is the difference between a Clarifier and a Sterilizer? 


Step 3. Choose Between a Clarifier or Sterilizer 

The main difference between the two is the strength of the UV light compared to the amount of water in your pond.  As a rule of thumb, use 10W of UV light per 1000 gallons for 'clarification', and 30 watts of UV light per 1000 gallons for 'sterilization'.  As a sterilizer, the unit will eliminate green water entirely, no matter what type of pond you operate.  When used as a clarifier, the unit is said to 'control' green water, however, it's recommended that ponds have at least 50% plant coverage and partial shade to cut down on algae growth.  Do you have an obvious green water problem that you're having trouble fixing? Or do you have a good number of fish in the pond?  Then use the unit as a sterilizer.  Do you have an ecosystem water garden with no fish that's running well, but could use an extra kick to help give you water that 'polished' look?  Then using the unit as a clarifier will likely be fine.


Need help choosing pond equipment?

Adding a UV Clarifier to an existing pond

To add a clarifier to an existing ecosystem you must determine your current flow rate and then choose a clarifier/sterilizer that matches those specs. Determine your flow rate by calculating the head pressure in your pond using our Head Pressure Wizard, followed by researching how much flow is generated by your equipment at that head pressure. Use that flow rate to help narrow down which unit will be best for you. Please note that adding a UV Clarifier will add head pressure to your system which will affect your current flow rate.

Does a UV Clarifier increase head pressure?

Yes, a UV Clarifier/Sterilizer will increase your head pressure. Please use our Head Pressure Wizard to estimate how much it will effect your flow rate. 

A UV Clarifier with 2" pipe has to house the UV equipment inside the pipe, leaving less than 2" for the actual water. Because of this, a 2" UV unit is usually equivalent to 1.5" pipe for head pressure calculations.

How can I decrease head pressure?

You can choose to run two UV clarifiers side by side to decrease the volume of water being forced through the unit. 

Do I have to run it year-round?

The length of time you run your UV Clarifier is largely dependant on sun exposure and the temperature of the environment around your pond. Higher temperatures yield higher algae growth, thus making a sterilizer necessary to keep the water clean. Once temperatures drop feel free to remove the clarifier and store inside until the temperature and sun exposure increase again.