# Technical Evaluation and Problem-Solving in the Reopening of a Thermal Bath Facility
###### Abstract
The system has significantly reduced natural gas consumption and pollutant emissions, contributing to the sustainable development of the city [20]. In a small Hungarian municipality characterized by rural infrastructure and public service needs, a modern geothermal energy system has been implemented. This project has significantly supported the heating of local public institutions and residential buildings, while also stimulating local economic growth [21]. [PERSON] et al. [22] show how a Czech spa experimental unit was successfully used to cool thermal water and simultaneously apply heat recovery, leading to significant energy savings. [PERSON] and [PERSON] [23] examine energy efficiency interventions in public buildings, with a particular focus on building insulation, HVAC system upgrades, renewable energy integration, and smart systems. The authors point out that these measures can significantly contribute to reducing the energy consumption and operating costs of public buildings, such as baths and swimming pools, while improving the sustainability of their operation. [PERSON] et al. [24] investigate the energy efficiency of a Norwegian swimming pool facility using multiple linear regression (MLR) to analyze factors affecting energy and water consumption. The research has resulted in the optimization of heat supply and water treatment systems, resulting in significant energy savings and reduced operating costs. Geothermal energy also plays a key role in tourism [25] by, for example, balancing seasonal traffic [26], and contributing to the physical and mental well-being of visitors [27]. Spas and thermal baths not only offer health services, but also attract thousands of tourists and contribute to the local economy [28]. However, ageing infrastructure and outdated technological systems pose serious sustainability challenges [29]. Moreover, these facilitieshave significant energy and water requirements. This can threaten the economy and sustainability of operations, along with the aging of the infrastructure and the obsolescence of technological systems. This is why it is important to examine domestic spans, as their technical condition is outdated and old. A prominent example is the Gyoparos Spa in Oroshaza, which has been a key player in the region's wellness and spa tourism for decades. However, in recent years, the deterioration of the technical condition of the spa--an insufficient geothermal system, unreliable water supply and architectural problems--has led to its partial closure. The aim of the present study is to provide a detailed assessment of the technical condition of the Gyoparos Spa, a systematic description of the existing problems and recommendations for the necessary renovations and improvements to enable the spa to reopen safely and sustainably. The study pays particular attention to the geothermal system, the water supply and the condition of the 50 m outdoor swimming pool, which are key to the long-term viability of the spa. The initial hypothesis is that the facility's current operational challenges stem primarily from outdated infrastructure and technological systems, which can be addressed through targeted technical interventions. A separate section presents development proposals for solving technical problems, including the restoration of the geothermal system, the introduction of modern water treatment and dosing systems, the structural improvement of the swimming pool, and the use of energy-efficient and intelligent mechanical and electrical systems. These proposals are not only aimed at remedying local problems, but can also serve as a model for other spa facilities.