Domestic Boiler Limescale Reduced, Showerhead Blockages

Home 9 Case Studies and Results 9 Domestic Boiler Limescale Reduced, Showerhead Blockages
Key results
Limescale significantly reduced
Showerhead blockages eliminated
Hot water flow improved

Case Study from HydroFLOW Tunisia

Domestic boiler limescale was a recurring problem at a residential property in Tunisia with two separate boilers, one for underfloor heating and one for domestic hot water. Scale kept blocking the showerheads, reduced hot water flow across the system and meant frequent plumbing maintenance, and the boilers themselves needed protecting. Two HydroFLOW® Pearl Plus units were installed directly on the two circuits, one on the heating circuit pipework and one on the domestic hot water line. Limescale problems were significantly reduced, the frequent showerhead blockages were eliminated, hot water flow improved and the need for plumbing maintenance fell.

The Challenge

  • Domestic boiler limescale kept returning across both circuits
  • Showerheads were frequently blocked by limescale
  • Hot water flow was reduced across the system
  • Plumbing fixtures required frequent maintenance
  • Two boilers, one for underfloor heating and one for hot water, needed protecting

The Solution

  • Units installed: two HydroFLOW® Pearl Plus
  • Installation point: one on the underfloor heating circuit pipework, one on the domestic hot water line
  • System: two separate boilers, for underfloor heating and for domestic hot water

To deal with domestic boiler limescale on both sides of the house, each circuit was treated on its own. One Pearl Plus went on the heating circuit pipework and the other on the domestic hot water line, both installed directly on the pipe. The aim was to reduce limescale and protect the two boilers and the water distribution equipment they feed.

Key Outcomes

R

Significant reduction in limescale buildup

R

Hot water flow restored across system

R

Showerhead blockages eliminated

R

Reduced need for plumbing maintenance

Independent Verification

All results in this study were measured and verified by third-party facilities managers and technical staff.

Summary

Limescale problems were significantly reduced, the showerhead blockages that had been frequent were eliminated, and hot water flow improved, with less plumbing maintenance needed. For a home with more than one boiler, the useful point is that each circuit got its own small unit, so the underfloor heating and the hot water were both covered. Blocked showerheads, weak flow and repeat plumbing work all trace back to the same scale, and all three improved together.

Ready to see more?

Ready to explore sustainable water treatment?

Get in touch to find out how HydroFLOW® can work for you.

© 2026 Hydropath Technology Ltd. All rights reserved