BP 200 Solar Cleaner is a specific product for the removal of sludge and debris created by the heat transfer fluid decomposition, present inside the system.
This fluid during the time, degrades because of the long heat exposure at high temperatures.
In these conditions, glycol and inhibitors contained inside the product, degrade irreversibly, creating solid residuals with a brown colour (sludge), that adhere on the internal surfaces of circuits, reducing the total performances of the system.
In these conditions, the antifreeze protection guaranteed by the heat transfer fluid, is progressively reduced and the pH of the fluid decreases, together with its thermal transmission capacity. In this case, it is necessary to empty the system and clean it with BP 200 Solar Cleaner, then fill again the solar circuit.