Various articles are available from Hammerkauf that are used for water treatment. There are indispensable test strips with which the pool owner can check both the chlorine level and the pH value. This is very important so that the chemicals are delivered in the correct dose. Too much is not only an unnecessary burden on the environment, but also leads to skin irritation, while too little can lead to the water tipping over. A completely different help for pool maintenance is a sponge that is left in the pool and soaks up dirt, oil and, for example, body lotion. The sponge is then simply squeezed out, cleaned and reinserted. Further aids for the maintenance of the pool are an electronic pool tester for chlorine and pH value or a digital set of the same type. Also available from Hammerkauf are tablets or granules for changing the pH value and chlorine. The INTERLINE starter set, which contains all the necessary things, is ideal for beginners. It is advisable to have so-called "quick chlorine" ready in case the water threatens to tip over. And ideally you should buy a floating dosing device into which, for example, the chlorine tablets can be filled. So you can enjoy the bath for a few days without paying attention to the chlorine level, because this is automatically released into the water through the slits in the dispenser. If you leave the water in the pool during the cold season, it is best to add liquid overwintering agent. This is also available from Hammerkauf.