Floating Weir Skimmer

For Duck Weed

The (FWS) Floating Weir Skimmer is a perfect tool from removing duck weed from the surface

• Targets floating duckweed and watermeal: Skims loose material before it mats or spreads
• Uses surface-level flow: Creates a controlled waterfall that carries floating debris into the skimmer
• Simple pump-driven operation: Pulls from the sump to generate continuous surface flow
• Supports filtration and recirculation: Allows filtered water to return to source for efficient cleanup
• Best results with largest skimmer models: 23″ wide weir captures more duckweed per pass
• Non-chemical removal method: Avoids harmful biocides that risk killing entire ponds
• Ideal for eutrophic water bodies: Especially effective in calm golf course ponds and similar settings

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IN STOCK. READY TO SHIP. PROBLEM SOLVED.

Tired of duckweed taking over your pond? We keep these big-mouthed skimmers on hand so you don’t have to wait. When the weeds double overnight, timing matters. Just ask.

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Floating Weir Oil Skimmer Features

Duck weed or water meal can be removed with the Floating Weir Skimmer (FWS) which is a floating surface skimmer. If it floats freely and can move across the surface on a flow of water, the FWS is a great tool for water meal and duck weed removal.

01

Performance

• Effective duckweed removal: Captures floating growth before it spreads into dense mats
• Large-mouth skimming: 23″ wide weir enables high-throughput surface capture
• Ideal for calm, eutrophic waters: Best used in still environments where duckweed thrives

02

Operation

• Flow-based intake: Surface debris is pulled in via skimmer’s controlled waterfall
• Pump-powered: Draws water from sump to maintain continuous suction and flow
• Supports strainer systems: Debris can be filtered while clean water returns to source

03

Safety

• Non-toxic method: Avoids harsh biocides that risk harming aquatic ecosystems
• No chemical runoff: Skimmer removes duckweed physically, not chemically

WHY FLOATING WEIR SKIMMERS MATTER

When duckweed spreads by the day, you can’t wait for chemicals to maybe work. A wide-mouth weir skimmer pulls floaters off fast — without nuking your whole pond. It’s the clean way to keep calm water clear.

How It Works: Floating Surface Flow Skimming

Duck weed or water meal can be removed with the Floating Weir Skimmer (FWS) which is a floating surface skimmer. If it floats freely and can move across the surface on a flow of water, the FWS is a great tool for water meal and duck weed removal. Pumping water from the FWS sump creates an equal flow into the skimmer mouth or waterfall / weir of the skimmer and into the sump. This skim or waterfall of fluid entering the skimmer carries loose floating materials (duckweed) or algae or weed into the skimmer.

If this flow is sent to a filter or strainer to hold back the duck weed the water can be drained back to source. Since duck weed increases exponentially, the removal of most of it allows you to keep up with it as opposed to trying to catch up.

See Also: NURDLES Removal Skimmer↓

Duckweed Hazards and Safe Removal

The beauty of our floating Big Ass Surface Skimmer is that it has only one moving part-the hinged weir and it can work with any pump that can pull suction. We’ve had the floating weir skimmers on the market for over 20 years, so they are a well proven and reliable surface skimmer that automatically self adjusts to the pumps flow rate-allowing the operator to take as little as 1/8” to over 3” of water off the surface—–without affecting the underlying water or in the case the underlying settled coal ash. We now have these floating weir skimmers working in several power plants dewatering ash ponds. Ironically several years ago several power plants were using the smaller FWS units to remove floating centospheres of ash from the surface of water in many similar ponds.

Like most everything else that we all used to do, we’ve found a better way to do it today. This is certainly true of coal fired power plants and their waste ash disposal and storage. Back when the power plants started using ponds for storing the ash under a water cap it was probably the recognized best method. Out of sight and out of mind. Somewhat.

Frequently Asked Questions