In order to prepare for the period of water shortage, and be able to predict these periodst, we should have all data about water wells and a man who cares about the data and interprets it.

1200 municipalities in the Czech Republic has no public water and residents are dependent on individual sources or municipal wells. According to the Law on Water Supply and Sewerage 2130 there waterworks operators to keep emergency supplies. More than 95 % of them relate to small communities.

Gray water recycling requirement for construction of new buildings of a certain size becomes mandatory in some areas. It can be expected that over time this trend will spread into areas that are prone to lack of drinking water, or the lack of treatment capacity impedes economic growth.

The article describes the sources, forms and health risks of lead in water and mainly removal of lead from water using sorption materials CFH 0818, Bayoxide E33 and GEH. The results of laboratory measurement show that all three materials were able to reduce lead concentrations well below the limit of decree no. 252/2004 Sb. Overall, the best results in the removal of lead from the water reaches the sorption material Bayoxide E33. Furthermore, it was shown that the used sorption materials have an effect on the removal of iron and manganese from water.

Paper analyses the dependance of heat savings by heat exchanger for waste water heat recovery on its efficiency, including the realistic conditions for heat exchanger operation.

Automatic sprinkler systems are used for fighting usually water. Firefighting foam is possible. Accordingly, sprinkler systems water or foam-water. Sprinklers are triggered automatically.

Automatic sprinkler systems are used for fighting usually water. Firefighting foam is possible. Accordingly, sprinkler systems water or foam-water. Sprinklers are triggered automatically.

Automatic sprinkler systems are used for fighting usually water. Firefighting foam is possible as well. Therefore, there are water or foam-water sprinkler systems. Sprinklers are triggered automatically.

We calculate insulation thickness in accordance with the criterion of maximum heat loss and monitor unwanted warming or cooling media and maintain the required temperature.

The fundamental problem for designer is to calculate right size of hot water tank. Designers tend to underestimte or oversize the size of the storage tank very often. It results in very low efficiency of DHW or malfunction. Author of the article shows a possible design approach.

Methods of cost allocation in apartment buildings have undergone significant changes in recent years. The article offers a comprehensive overview of cost allocation methods in multi-dwelling units according to applicable regulations. It is intended mainly for owners of residential units, board members of homeowners associations, managers of housing cooperatives or individuals and companies managing residential buildings.
Cost allocation in apartment buildings is currently governed by two laws: Act No. 67/2013 Coll. and the new Civil Code No. 89/2012 Coll. These laws governed cost allocation in calendar year 2014 and apply also for 2015. The heating and hot water supply costs in MDUs from 2016 onwards will be allocated pursuant to the new decree No. 269/2015 Coll. and the amended Act No. 67/2013 Coll.

Even in 2016 can receive a contribution of up to 20 000 CZK for an apartment can the reconstruction of the water supply in houses where old lead pipes. The objective is to reduce the lead content of drinking water.

Owners of residential buildings and their tenants must ensure the implementation of some activities on the technical and fire safety devices in order to ensure their safety and functionality in use. Inspections and checks are therefore not just binding on the applicable regulations, but also may prevent damage to health and property.

There are two standards for microbiological examination of samples for the presence of Legionella bacteria. Using them we can get valuaes not only to compare, but sometimes also as a signal to the challenging economic adjustments and changes in the system of production and distribution of hot water.

The article reports on the reasons of soil waterlogging, impact of ground water on structures, and on drainage systems and measures to eliminate the waterlogging effects. Furthermore, there is an information about pertinent requirements of statutory regulations and two schematic maps of waterlogging of soil in the Czech Republic are shown.

The new Civil Code recognizes contribution to the management of the house and land, contribution to its own administrative activities and deposit services.

During a recent revision of CSN 75 5455 were in the process of determining the calculation of flow made only minor changes. The reason was the lack of measured flow. Therefore, at appropriate occasions perform additional measurements. For these measurements is determined also water consumption and its distribution throughout the day.