How to clean the quartz parts
UV systems are usually equipped with quartz filters for various functions. These should always be kept clean and free of scratches for an optimum performance.
To clean them properly we recommend using a cotton cloth or other soft tissue and isopropyl alcohol. If the dirt is very adhered and does not come out by rubbing it gently, apply an small amount of solvent on its surface (as long as the glass does not have a special treatment that can be deteriorated).
If the glass has cracks, scratches or embedded dirt that does not come out with the above, replace it with an equivalent.