You can clear the cache whenever you want via Cache Timeout page.
How does it work?
The cache timeout feature uses wp_schedule_event() and it works when someone visits your WordPress site. If you don’t have any visitors, the function won’t work.
Adding a Cache Timeout Rule
1. Open the “Delete Cache” tab
2. Push on the “Add New Rule” button.
The system is case insensitive.
There are 3 ways to use this feature. All, Home Page, Is Equal To.
Examples:
If you want to delete the cache of the home page, you need to select “Home Page”.
If you want to delete the cache of “contact-us” , you need to select “Is Equal To”.
http://www.wpfastestcache.com/contact-us
If you want to clear the all cache, you need to choose “All”.