The Pond Guy AllClear G2 Pressure Filter & Ultraviolet Light Clarifier

The backflush lever allows you to reverse the water flow through the filter to eject trapped debris without opening the canister. It significantly reduces maintenance time, though you will still need to perform a full manual cleaning of the filter pads periodically to ensure optimal biological filtration.

Yes, the AllClear G2 is designed to be partially buried. You can dig a hole and bury the canister up to the lid, which helps hide the unit and keeps it out of sight while maintaining easy access to the controls.

The 9-watt UV clarifier is effective for neutralizing green water algae in smaller ponds, but its capacity depends heavily on your pond's volume and direct sunlight exposure. Always verify your total pond gallonage against the manufacturer's recommended flow rates to ensure the UV light can keep up with your specific environment.

Yes, this is a pressurized filter, not a pump. You will need to purchase a compatible pond pump separately to push water from your pond into the filter unit.

It is suitable for Koi ponds, but keep in mind that Koi produce more waste than typical goldfish or water gardens. You may need to clean the filter pads more frequently than the manufacturer's standard recommendation to maintain clear water.

To maintain maximum effectiveness against algae, you should replace the UV bulb once every season, typically in the spring. Even if the light appears to be working, the UV output degrades over time and becomes less efficient at clarifying the water.