WHY DO THE BACTERIA OCCURE IN THE PIPELINE?
RDrinking water distribution is a dynamic system that is burdened on a daily basis. Nevertheless, people often do not realize it and take the water distribution as a matter of course. Pipes are very often positioned in places that are not visible or are built into the walls or floors. Regardless of the material, each pipeline has a certain lifetime, while shortening lifetime of every pipeline will reflect in a certain way.
01. ZINC COATED PIPES
Water contains a lot of minerals and often also a lot of mechanical impurities. In the case of zinc coated pipelines, the rust is gradually captured on the surface and forms a mineral deposit. Such an uneven and porous environment is ideal for formation of biofilm or deposit of various bacteria. Combined with limited or minimal flow in the pipeline, it becomes the ideal situation for algae formation and more serious contamination in the pipeline.
02. PLASTIC PIPES
In plastic or plastic-aluminum pipes, a very similar problem occurs, but it appears in a different way. As the surface of the plastic pipeline is very smooth, if a "crust" of mineral deposit is formed in the pipeline, it will be peeled off after some time and caught most often in the reducers, pipe elbows or joints. The cluster of impurities again prevents full flow and creates the ideal environment for the formation of bacteria and algae in the pipeline.
03. REDUCED FLOW OR UNDIVIDED PIPELINE BRANCHES.
I case of larger pipeline dimensions, such as main inlets to the buildings or internal distribution in larger complexes, it happens often that some parts of the distribution system are used less than the other ones. One of the best examples is when hydrants piping is not divided from the drinking water piping using non-return valves. The water in these branches doesn't move and acidifies, and when any pressure drop occurs, the water is mixed and the bacteria grows throughout entire water distribution system.
04. CONTAMINATION OF PRESSURE VESSELS AND FLOW EQUIPMENT
Pressure vessels and tanks are frequent deposits of bacteria, as there is a high water volume, often containing several tens to hundreds of gallons of water without any flow. Not only the water doesn't move there and again acidifies the same way as stagnant water in the pipeline,but it can also happen that the bag of the vessel ruptures and the water is in direct contact with the vessels shell. After the bag rupture, further corrosion and contact with air occurs, which only increases the probability of bacteria and algae formation.
"REGARDLESS OF THE MATERIAL, EACH PIPELINE HAS A CERTAIN LIFETIME, WHILE SHORTENING LIFETIME OF EVERY PIPELINE WILL REFLECT IN A CERTAIN WAY."
HOW TO PREVENT POLLUTION AND CONTAMINATION OF THE PIPELINE?
To prevent contamination, it is important to ensure proper water flow to all parts of drinking water distribution. It is important to secure the cleanliness of the pipeline and the cleanliness of all the sources from which the pipeline is supplied.
Dirty filter cartridges, clogged water meter or using of old piece of pipe may be just another reason why the pipeline is clogged and contaminated. Although many water heater manufacturers feature a water "disinfecting" mode, that overheats the water regularly, this protection is not sufficient. Bacteria like the Legionella cannot be fully removed by heat, we can only eliminate it to a minimum level at temperatures above 70 - 75 °C. The water gets into the entire distribution, and despite the fact that we have removed Legionella in the water heater, a new problem occurs in the water in pipeline that slowly cools down. Legionella bacteria are able to double their number in just 4 hours at the temperature of 20 - 30 °C.
One of the common problems are contaminated corner valves, flex hoses or shower heads. Their regular replacement and inspection is again often neglected but very important, and it is necessary to check them at regular intervals.
DO YOU EXPERINCE ANY OF THE ABOVE PROBLEMS?
Learn more about pipline cleaning and disinfection to avoid difficult repairs and complications with a defective system.
SOURCE OF WATER AND ITS QUALITY IN THE DISTRIBUTION
Also the source of water supplying the building or complex can be a considerable problem. Many times buildings are connected to the well water without any filters, and the owners rely on its quality only through quality control using annual analysis. The subsoil keeps changing and the soil contains more and more impurities. It is important to secure sufficient filtration or water treatment, so that all biological elements are removed immediately at the beginning. Equal or even more important step is the regular inspection and replacement of the filter cartridges that capture all impurities and again become the ideal environment for the formation of bacterial deposits and algae.
WHAT TO DO WITH POLLUTED PIPELINE?
If you've already found out that water is contaminated, you need to start with an immediate solution, as the situation may only get worse.
The pipeline should be inspected to find out possible cause of dirty distribution. Once the problem has been identified, you have to solve it and take all the necessary steps to avoid repeating the problem on the same or similar place, and disinfect the water distribution. For 100% protection of the distribution for the future, we also recommend replacing flex hoses, corner valves and aerators as these materials are exposed to air and to mixing hot and cold water, where the risk of bacterial growth is increased.
When disinfecting, it is necessary to load the concentrate throughout entire distribution system to avoid mixing the water or omitting a particular branch when flushing. Disinfection is poured from the source, respectively in case of municipal water supply it is poured from the water meter. The concentrate is tinted with a food colorant for clear distinction of where did the disinfection get to. The tinted concentrate must reach each delivery point and stays in the system for at least 3 hours for complete bacterial elimination and 100% biocidal effect. In some cases, depending on the dimension, it is necessary that water will circulate in the system.
After finishing the disinfection, water is drained until it is lucidly clear and without any tint. If you experience a problem with water quality at your home, hotel or office building, do not hesitate to contact us and we will be happy to come to a personal inspection. Together, we will discuss all options of contamination removal and disinfection for restoring the full service.
Don't underestimate the quality of distribution system as its condition is often alarming, and its neglecting may also reflect in your home.