Most Popular FAQs

Below is a list of 10 questions Sentinel customers have asked us the most, which is why we have compiled a Top 10 list for you to refer to if you face the same questions - 
 

1. How to powerflush a central heating system
    
2. How to choose the right central heating system cleaner 
    
3. How to dose inhibitor / cleaner into a central heating system
    
4. How to stop boiler noise
    
5. How to service a filter
    
6. How to seal a leaking central heating pipe or joint
    
7. How to check an inhibitor level
    
8. How to prevent hard water
    
9. How to install a KalGUARD
    
10. How to install a filter