Sediment dewatering filters that fit over a pump discharge hose to trap sediment, for groundworkers, utility and civil engineering teams.
Sediment dewatering filters that fit over a pump discharge hose to trap sediment, for groundworkers, utility and civil engineering teams.
A sediment dewatering filter is a reusable filter sleeve that fits over the end of a pump discharge hose. Water pumped out of an excavation passes through the filter, which holds back sediment at 150 micron before the water drains away. It is designed for 2 inch pumps and comes in three sizes for different flow rates and sediment loads.
Pumping an excavation straight into a drain or watercourse sends sediment with it. That can block drains, pollute rivers and lead to fines, clean-up costs and lost contracts. A filter on the end of the discharge hose traps the sediment where the water leaves the pump, without hiring a settlement tank or tanker.
Reusable up to 20 times: empty and refit it through the job, then wash it out between jobs.
150 micron filtration: holds back sediment particles larger than 0.15mm.
Fits over the discharge hose: no settlement tank or tanker needed on site.
Three capacities: 20kg, 40kg and 100kg of sediment, to match the size of the job.
Visible fill: the flow slows and the filter looks full, so it is clear when to empty it.
Designed for 2 inch pumps: fits the pump size most groundworks and utility teams use.
Trades and roles
Groundworkers
Utility contractors
Civil engineers
Site managers
Environmental managers
Plant and pump hire teams
Industries
Construction and groundworks
Water and wastewater utilities
Highways and roadworks
Gas, electricity and telecoms utilities
Civil engineering
| Specification | Detail |
|---|---|
| Product name | Green Rhino Sediment Dewatering Filters - Reusable 150 Micron |
| Product code | GRR010 |
| Product type | Reusable sediment dewatering filter for pump discharge hoses |
| Filtration | 150 micron |
| Reuse | Up to 20 times, depending on the sediment |
| Pump size | 2 inch pump |
| Fitting | Over the end of the discharge hose, secured around the filter collar |
| Pressure release | Fitting designed to break away if pressure builds |
| Use | Dewatering excavations, roadside and utility work |
| Brand | Green Rhino |
| Sizes | L, XL, XXL |
| Product code | Size name | Size | Sediment capacity | Max flow rate |
|---|---|---|---|---|
| GRR010502SEDO | L | 150cm x 35cm | 20kg | 450 L/min |
| GRR010510SEDO | XL | 150cm x 80cm | 40kg | 800 L/min |
| GRR010520SEDO | XXL | 150cm x 100cm | 100kg | 800 L/min |
| Use, site or condition | Suitability |
|---|---|
| Dewatering excavations and trenches with a 2 inch pump | Suitable |
| Roadside and utility maintenance work | Suitable |
| Water with oil or fuel contamination | Not recommended, use an oil and sediment filter |
| Fine clay sediment or sensitive sites such as SSSIs | Not recommended, use an ultra-fine sediment filter |
| Flows above the filter’s rated flow | Not recommended, use a larger size or several filters on a manifold |
| Securing with chains or rope | Not recommended, they stop the fitting breaking away under pressure |
Groundworks, utility and civil engineering teams use sediment filters wherever they pump water out of an excavation. Typical jobs include trenches, foundations, pits and roadside repairs, often in towns where water goes to a surface water drain. They suit any operative who can set up a 2 inch pump.
Dewatering foundation and basement excavations on building sites.
Pumping out utility trenches and joint holes before repair work.
Clearing water from roadside excavations before it reaches road gullies.
Dewatering pits and manholes during water and sewer maintenance.
Pumping out flooded excavations after heavy rain.
Step 1: Choose the size by your pump’s flow rate and the amount of sediment, using the Size Selection table.
Step 2: Lay the filter on level ground where the filtered water can drain away.
Step 3: Slide the filter collar over the end of the discharge hose.
Step 4: Fit two of the supplied cable ties around the collar and tighten them to about two-thirds of the hose width.
Step 5: Start the pump and check the filter regularly while it runs.
Step 6: When the flow slows and the filter looks full, stop the pump, empty the filter, refit it and restart.
Step 7: Between jobs, wash out the inside of the filter with a hose.
Leaving the pump running unwatched, so pressure builds and the filter comes off the hose.
Not emptying the filter when it is full.
Choosing a size with a lower flow rate than the pump.
Securing the filter with chains or rope, which stops it releasing under pressure.
Using it for water with oil or fuel in it.
Check whether your discharge needs a permit or consent before pumping to a drain or watercourse. Keep the filter where muddy water cannot run onto roads or footpaths and cause slips. Never leave a pump running without checking the filter.
Wash out the inside with a hose between jobs. Store it dry. Replace it if it is torn or will not clear after washing.
Q: Which size sediment filter do I need?
A: Match the filter to your pump’s flow rate and the amount of sediment. The L size takes up to 450 L/min and 20kg of sediment. The XL takes up to 800 L/min and 40kg, and the XXL takes up to 800 L/min and 100kg.
Q: What does 150cm x 35cm mean on a sediment filter?
A: The first number is the length of the filter, 150cm. The second number is the width, 35cm. All three sizes are 150cm long, and the width sets how much sediment the filter holds.
Q: What does 150 micron mean?
A: A micron is a thousandth of a millimetre, so 150 micron is 0.15mm. The filter holds back sediment particles larger than that. Finer particles, such as some clays, can pass through.
Q: What is this filter not suitable for?
A: It is not suitable for water with oil or fuel in it, which needs an oil and sediment filter. Fine clay sediment and sensitive sites such as SSSIs need an ultra-fine filter. Flows above the rated flow need a larger size or several filters on a manifold.
Q: Should I choose a reusable filter or an economy filter?
A: A reusable filter can be emptied and refitted up to 20 times, depending on the sediment, so it suits regular dewatering. An economy filter costs less but is made for single or occasional use. Over several jobs, a reusable filter usually works out better value.
Q: How do I know when the filter is full?
A: The flow from the filter slows and the filter looks visibly full. Stop the pump, empty the filter, refit it and start again.
Q: Why does the filter come off the hose?
A: The fitting is designed to break away if pressure builds, to protect the filter. If it keeps coming off, the flow rate may be too high for the size, or the filter is not being emptied when full.
Q: How do I clean the filter between jobs?
A: Wash out the inside with a hose, then let it dry before storing. Regular washing helps it last for its full number of uses.
