The Dayliff DSD 3/7 Well Pump is a multistage submersible centrifugal pump designed for domestic and small-scale water supply from wells and boreholes. It combines durable stainless-steel construction with a compact multistage design and a fixed float switch for automatic water-level control. 

⚙️ Construction

The DSD range is built using materials selected for submerged operation and long service life:

• 🧱 AISI 304 stainless-steel outer housing
• ⚙️ Plastic impellers
• ⚙️ Plastic diffusers
• 🛡️ Cast-iron suction chamber
• 🛡️ Cast-iron delivery chamber
• 🧲 Stainless-steel shaft
• 🔩 Stainless-steel shaft coupling

Davis & Shirtliff specifically states that the DSD range is designed for domestic and small-scale water supply from wells and boreholes.

🔄 Fixed Float Switch

The fixed float switch helps automate pump operation according to water level.

This can help with:

• 💧 Automatic start and stop
• 🛡️ Reducing the risk of dry running in suitable installations
• ⚙️ Reducing manual pump switching
• 🚰 Water-level management in wells and tanks

🌊 Multistage Pump Design

The DSD 3/7 uses a multistage centrifugal design, which helps produce useful pressure while maintaining a compact submerged pump body.

This makes it suitable for applications where water needs to be lifted from a well or borehole and delivered to:

• 🚰 Storage tanks
• 🏠 Household plumbing
• 🌾 Small irrigation systems
• 🐄 Livestock water points
• 💦 General water-transfer systems

✅ Benefits

• Multistage design for improved pressure
• Durable stainless-steel housing
• Automatic float-switch operation
• Compact submersible design
• Good sand-handling construction
• Suitable for wells and boreholes
• Low installation footprint
• Suitable for domestic and small agricultural systems
• 24-month listed warranty

⚠️ Installation Notes

• 💧 Keep the pump adequately submerged during operation
• ⚡ Use correct electrical protection and earthing
• 🪢 Do not suspend the pump using the electrical cable
• 🧵 Use an appropriate safety rope or approved support
• 🔄 Ensure the float switch can move and operate correctly
• 🛡️ Fit a non-return valve where required
• 🚰 Confirm pipe size and system pressure requirements before installation
• 🔧 Professional pump installation is recommended