SWIMMING POOL CLEANING
Hallmark Hotel & Spa - Gloucester, GL4
Client's Challenge
Hallmark Hotel & Spa in Gloucester required a specialist swimming pool cleaning solution to remove persistent calcium build-up affecting the pool deck and surrounding tiled surfaces. Over time, mineral deposits had hardened across key guest-facing areas, significantly impacting the visual standard of the poolside and creating an unwelcoming appearance.
As a high-end hospitality venue, maintaining immaculate presentation across leisure facilities is essential. The client required a professional contractor capable of removing heavy calcium scale without damaging tiled finishes, while restoring the pool environment to a clean, premium standard suitable for ongoing guest use.
Assessment & Planning
APT ICC held detailed discussions with the client to confirm the extent of calcium build-up, affected areas, and the expected finish standard. A site assessment was completed to determine the safest and most effective
non-damaging cleaning method for tiled poolside surfaces.
Based on the assessment, a tailored cleaning plan was developed to ensure scale removal could be achieved efficiently while preserving the integrity of tiles, grout lines, and surrounding finishes.
Methodology
APT ICC delivered a staged restoration process designed specifically for
hardened calcium removal in sensitive poolside environments:
1. Protection of surrounding surfaces and controlled segregation of the working area to prevent overspray or residue transfer
2. Application of specialist cleaning methods to break down hardened calcium deposits on tiled surfaces
3. Controlled soda blasting used where appropriate to safely lift mineral build-up without aggressive abrasion
4. Support treatment using a diluted descaling agent to complete calcium removal and restore surface appearance
5. Final inspection, detailing, and presentation checks to confirm hospitality-grade finish standards

Site Access & Logistics

Equipment
• Soda blasting equipment for controlled mineral deposit removal
• Surface protection materials and masking systems
Chemicals
• Phos Clean – descaling agent for calcium and mineral build-up removal (diluted and applied as required)
• Aquacleanse
The Results
APT ICC successfully removed hardened calcium deposits from the pool deck tiling and surrounding affected areas. The restored surfaces returned the poolside environment to a clean, premium standard aligned with guest expectations within a hotel and spa setting.
The completed works reinstated the visual appeal of the leisure
facilities and supported Hallmark’s commitment to delivering a high-quality guest experience.















