Cleaning Plastic Water Tanks: How to Clean and Why It's Important
In many contexts, having at least one water tank is essential, whether for domestic, industrial use, or for agricultural self-production activities in the countryside. They are used to collect rainwater or water extracted by other means, store it, and then use it for activities that require water resources or drinking water. Whether it's large cisterns or small tanks, it's crucial to remember that these resources also need regular cleaning to keep the liquid inside safe and free from contamination. It's not always straightforward, and there's a risk of overlooking these details, perhaps thinking that since they are exclusively water containers, they are naturally clean, but the truth is quite different. In this article, therefore, we will explain why and how to clean plastic drinking water tanks.
Why it is important to clean the water tank
A water tank needs to be cleaned even if its only function is to store water. This is simply because water itself is never pure (or completely pure), and if left unused for long periods, it becomes stagnant. Tank maintenance is generally not that complex and can be done over extended periods, but it remains important to address it to eliminate accumulated sediment, dirt, and microorganisms. Inside tanks, if they often contain long-stored water with little turnover, algae and bacteria, even potentially dangerous ones like Legionella, can form. It goes without saying that it's important to know how to clean a plastic drinking water tank if it's used for different liquids. For tanks exclusively used for drinking water, it is also advisable to perform a thorough cleaning at least twice a year, to prevent the formation of biofilm, a film where microorganisms and debris can adhere and proliferate.
How do you clean the water tank?
It's clear why it's important to clean the cistern, but getting to the heart of the matter, the real question is: how do you clean a dirty tank? There are fundamental steps to follow. First of all, it's necessary to empty it. To do this, you can easily connect an irrigation hose to the drain valve, to direct the water away, temporarily collecting it in another container or using it for whatever is needed until it's empty. At this point, it's necessary to remove any residue using buckets, sponges, and rags. The ideal would be to manage to completely dry the tank. Once this operation is complete, we move on to the definitive phase: how to clean a polyethylene tank? The important thing is to be careful not to scratch the plastic walls, and therefore, it is useful to use a soft-bristled brush. This is a delicate phase, and to properly disinfect and clean the entire tank, it is important to use an alkaline powder detergent specific to the material and the use we are making of it. Just be careful not to overdo the use as it is a very strong product, even if it is the only one suitable for this type of work. Do you have a very large tank and want to know how to effectively and quickly clean a 1000-liter water tank? The use of a pressure washer may be suitable for you, because the jet will be able to quickly and easily remove all traces of dirt. After the tank is completely clean, it is then necessary to rinse it with plenty of clean water to remove any traces of detergent. Finally, before refilling, it is advisable to disinfect.
What to use to disinfect tank water?
Disinfecting a tank is important because it helps prevent the formation of algae and bacteria, thus allowing the liquid inside to remain clean for a long time. However, choosing the right product is not immediate. First, it is important to examine the intended use of the water we will put into the tank. If it is intended for food use, in fact, we must not use chemical disinfectants but only those specific for this type of use. An ecological solution, for example, can be citric acid, excellent for its biodegradability and the absence of harmful chemical residues. Alternatively, it is possible to use chlorine: one of the most common disinfectants due to its powerful bactericidal effect. However, one must pay attention to the quantities: how much chlorine for a 1000-liter water tank? According to regulations, to maintain proper water sanitization without compromising its potability, the correct amount is about 200 mg.
Preparing for tank cleaning
It is therefore essential to be aware of how to clean a plastic drinking water tank and why it is good to do so periodically. The process requires attention, care, and above all, the appropriate tools. From emptying the tank to internal cleaning with a pressure washer, up to disinfection with chlorine or ecological solutions such as citric acid, each phase must be carried out carefully to obtain effective and safe results. If you are looking for everything you need for cleaning and maintaining your tank, visit the Vivi In Campagna store, where you can find a wide variety of products for the care and treatment of your plastic or stainless steel tanks.
