When seasonal rain, blocked drains or heavy storm events cause pooling on flat roofs, patios or garage tops, even a small amount of standing water can create serious risks- structural, safety and aesthetic. For building managers, contractors and facilities professionals, having a reliable, easy to deploy pump kit is essential to prevent damage and maintain peace of mind.
The RSD-150 Standard Flat Roof Water Removal Pump Kit, available from Henry Pumps, is designed specifically for nuisance water management on domestic and light commercial flat roof applications. In this article we’ll explore its features, benefits, typical use cases and what to consider when choosing your water-removal solution.
Why This Kit Stands Out
The RSD-150 flat roof water removal kit is designed to be plug and play, compact and highly effective for shallow water removal, making it ideal for places where water accumulation is a frequent but manageable issue, rather than heavy flooding.
Some of its standout specifications:
- Automatic “Crab Sensor” start/stop control, so the pump activates when water reaches a minimal depth and stops once clear.
- Pumps down to as little as 1mm of water, meaning the surface is practically dry.
- 100L/min maximum flow, outlet size 1″ (25mm), head up to 6.5m, and compact weight at 5.3kg.
- Supplied as a kit with a 10m green MDS discharge hose and stainless steel clips, ready to deploy immediately.
For environments such as flat roof terraces, light commercial plant rooms, garages or patios, the RSD-150 kit offers a balance of capability, simplicity and cost effectiveness.
Typical Applications
Because of its shallow water capability and automatic operation, this pump kit is especially suited to:
- Flat roof extensions that suffer rainfall pooling due to insufficient fall or blocked outlets.
- Patios, driveways and gardens where heavy rainfall may cause retention that leads to slip hazards or water ingress.
- Garages, sheds or utility rooms where water may leak or accumulate during storms.
- Small commercial properties or landlord portfolios where nuisance water needs rapid mitigation without heavy equipment.
Its lightweight and compact design means that it can be stored during dry months and rapidly deployed when needed, turning a reactive task into a maintained asset.
Practical Tips for Deployment & Use
1. Positioning the pump
Ensure the RSD-150 is placed on the lowest point of the water collecting surface, preferably on a stable base. Because it pumps down to 1mm, even minimal pooling can be cleared effectively.
2. Hose routing
The supplied 10m of 1″ hose is adequate for most domestic flat roof runs, but ensure the discharge outlet is unobstructed and water flows away from building façade. Support the hose to avoid kinks and ensure proper drainage.
3. Automatic sensor use
The Crab Sensor ensures the kit only activates when water is present, saving energy and reducing wear. Confirm electrical supply is secure and the float sensor is unobstructed.
4. Maintenance
Even though nuisance water is lighter duty than heavy flooding, regular inspection is still vital: check hose condition, clips, discharge route and ensure the pump is clean and ready ahead of rainy seasons.
5. Safety & installation
Ensure the electrical plug is protected from water and sheltered appropriately. For outdoor use, an RCD protected circuit is advisable. Always follow manufacturer guidelines for positioning and safe operation.
Frequently Asked Questions
Can this kit handle large volumes like heavy flooding?
No. The RSD-150 is designed for nuisance water and pooling rather than large deluge or deep flooding events. For heavy floods you’ll need higher capacity systems.
Does the Crab Sensor require any setup?
The sensor is pre integrated in the kit for automatic operation; positioning the pump correctly and connecting the supply is typically all that’s required.
What type of maintenance is required?
Minimal maintenance is needed: rinse the pump and hose after usage, check for debris, inspect the discs/clips and test the automatic function periodically.
Is this kit suitable for commercial use?
While primarily aimed at domestic and light commercial settings, it can serve small commercial buildings or landlord portfolios. For larger sites, consider the more powerful RSD-400 or other pro systems.
Final Thoughts
Managing nuisance water on flat roofs, patios and garages doesn’t need to be complex or expensive. With the right solution, like the RSD-150 Standard Flat Roof Water Removal Pump Kit, you gain a compact, automatic and effective tool to keep your property safe and dry.
For site managers, contractors, facilities professionals or landlords, investing in a flat roof water removal pump kit is a proactive step to protect your assets and avoid downtime. Explore Henry Pumps’ full range of flood defence and water removal solutions to find the appropriate kit for your next project.