How to take care of the tanks in the caravan and motorhome?

How to take care of the tanks in the caravan and motorhome? – main image

The care with which we service the tanks in our vehicles is of great importance for their durability, installation patency, microbiological safety and broadly understood hygiene.

Water (both clean and gray) left in tanks and installations for a long time, especially at higher temperatures, is an ideal environment for the development of undesirable microorganisms. This phenomenon is often referred to as " flowering ", and a characteristic biofilm is deposited on the pipes and internal walls of the tanks.

Another possible problem may be calcifications and other minerals that build up over time under the influence of hard water. As in a kettle, they can precipitate over time in the form of mechanical impurities in the water taken in or affect the patency of pipes and fittings. The gray water tank also needs regular care. Failure to operate this important element over time can lead to problems with patency, considerable deposits of contamination caused by the build-up of organic substances (mainly fats) and soon damage the level probes and / or seals.

In the list below, we present a number of technologically advanced products that will help keep the tanks in proper condition. Of course, their use is not the only right way, but it is definitely the surest and safest. Both the materials from which tanks and installations are made, as well as those used in gaskets or valves, may not withstand the aggressive chemicals used in industry or in households (e.g. high concentrations of chlorine). Taking into account the value of vehicles and the costs of possible repairs, it is better to extend the life of these installations by investing in dedicated funds and positively influencing their service life.

The silver ball - purpose: drinking water maintenance


Silver ions have aseptic properties and effectively improve the quality of water in reservoirs, slowing down the degenerative processes. The ball is designed for tanks up to 80l (small version) or up to 300l (large version). The product is added to a clean tank through the inspection opening. The product works self-regulating up to 2.5 years. Silver ion concentration below 0.01 mg / l. The small silver ball is 45 mm in diameter and the large ball is 86 mm in diameter.
It consists of a special silver wire. Silver ions cannot be used in metal tanks.

Dr Keddo Mikrosept - purpose: drinking water maintenance


Mikrosept is a silver-based liquid drinking water preservative. It is tasteless and odorless, does not contain chlorine and nitrates in a certain dose. Not suitable for metal tanks.

100 ml microsept / pipette for tanks up to 50 l
100 ml microsept / spray attachment for tanks from 50 l
250 ml dosing bottle for tanks from 100 liters
100 ml is enough for 1000 liters of water.

Dr. Keddo Schleimpur - Purpose: tank cleaning


Schleimpur removes sludge, streaks, germs and algae as well as limescale in the water systems of motorhomes and caravans. It must be completely removed after application. It is biodegradable. 250 ml is enough to clean a 100 l tank with fresh water. We recommend cleaning the tank system twice a year.

Dometic Tank Cleaner - purpose: cleaning and disinfection of tanks


The Dometic tank cleaner is a product based on environmentally friendly detergents. The convenient form of tablets makes dosing easier.

Dr Keddo Despur - purpose: cleaning and disinfection of tanks and installations


Despur completely removes lime, sludge and streaks, additionally disinfecting the water system.
Frequency: once a year. Best to use together with a silver ball (Silberkugel)
Capacity: 500 ml / 100 l tank
Available in various capacities.

Thetford Gray Water Fresh


The agent prevents unpleasant odors from the installation. It minimizes the formation of sediment and deposits in the gray water tank. Treats the tank and its contents. Allows odorless emptying of the gray water tank.
Capacity 0.8l.

Dr. Keddo Purimar - purpose: odor elimination


Eliminates odor in the waste water / gray water tank. It can also be used as a very mild descaling agent for tanks, sinks, coffee machines etc. Based on citric acid; easily biodegradable.

Dosage: approx. 100 ml per 100 liter tank.

Packaging - 0.5 l

Duo Tank Cleaner Concentrated - purpose: cleaning tanks


This is one of the newest members of the famous Thetford Concentrated family. Universal, powerful, concentrated cleaner for faeces and gray water tanks. Refreshes and cleans all such tanks, extending their life.

It removes limescale, sediment and grease, also cleaning the mechanisms inside the tanks. No scrubbing required!
0.8 l = 4 x faecal tank cleaning (4 × 200 ml)
0.8 l = 1 x faecal tank cleaning (200 ml) + 1 gray water tank cleaning (600 ml)

Recommended use 2-3 times a year.

The above proposals are only a part of the CarGO company's offer! In their store, they also have a number of anti-freezing agents for tanks, as well as specialist agents, such as an agent for neutralizing and removing diesel fuel from the clean water tank.

Be sure to visit their store and take advantage of the rich offer and promotions!

at the above- mentioned

Motorhome rental Poznań Author of the article: Maciej Kinal The article was prepared in cooperation with CarGO! Rent a Camp
How to take care of the tanks in the caravan and motorhome? – image 1
How to take care of the tanks in the caravan and motorhome? – image 2
How to take care of the tanks in the caravan and motorhome? – image 3
How to take care of the tanks in the caravan and motorhome? – image 4
This article was prepared in cooperation with CarGO!
Maciej Kinal
Maciej Kinal

I feel best in the form of trade fairs and meetings with enthusiasts. Technical freak. In my life I have dismantled many motorhomes for the first time. Fan of large vehicles, mountain biking and traveling without weight and financial restrictions. At CampRest, I am responsible for all publications on automotive topics.

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