Clear Water Guarantee Program - We guarantee clear water or your money back!

THE CLEAR WATER SYSTEM
    is comprised of 3 elements – filter, UVC and pump.   

THE RIGHT COMBINATION 
    of products based on the size of your pond and fish load will result in crystal clear water.

ANY SIZE POND
     can have a Clear Water System. New construction or retrofitted to an exitsing pond. 

REMOVE THE GUESSWORK
     by following the 4 easy steps of the Clear Water Guarantee

OASE has engineered specific filter systems to provide the OASE Clear Water Guarantee (CWG). Using a CWG filter system we guarantee you will be able to read the 1" marking on a tape measure when the tip is submerged to a depth of 3 feet. 

A filter system consists of: 

  • A pump to feed the water into a filter 
  • A filter that ensures biological  and mechanical cleaning 
  • A UVC clarifier to clean the green out of the water

Filter Sizing Charts

In-Pond Filter Systems

for small ponds. In-pond filters include 3 nozzle choices for appeal and added aeration.

 

Pressure Filter Systems

for small ponds. In-pond filters include 3 nozzle choices for appeal and added aeration.

 

Flow-Through Filter Systems

for small ponds. In-pond filters include 3 nozzle choices for appeal and added aeration.

4 Steps to a Clear Water Guarantee

1. Determine your pond volume:

For circular ponds: Pond volume (gallons) = diameter (ft.) x diameter (ft.) x depth (ft.) x 5.9 

For rectangular ponds: Pond volume (gallons) = length (ft.) x width (ft.) x depth (ft.) x 7.5

2. Determine the fish load:

The more fish in the pond, the higher the nutrient load and the larger the filter system should be.

LIGHT - Planted ponds with few or no fish
MEDIUM - Planted ponds with 10 in. of fish per 100 gallons of water or less
HEAVY - Planted ponds with koi or 20+ in. of fish per 100 gallons of water 

3. Choose the correct filter system:

Use the filter system chart to determine the appropriate filter system for your pond. 

4. Install and maintain the filter system:

Install the CWG products per installation instructions. Clean the filter as needed and replace the UVC bulb annually.