Filter Out Rows As They Become Blank

I have two spreadsheets. Spreadsheet B reads from the master. No entries are made on spreadsheet B, it is visual only. Changes are made only on the master. I want to create a Macro where all blank lines are filtered out automatically on spreadsheet B, in effect only lines with values are displayed.

Once a new task is created, the details are typed into the master spreadsheet and spreadsheet B, located in another building, is automatically updated to display the details. Once the task is completed which can be seconds, minutes or hours later, an "x" is placed in column A of the master. I have formulated spreadsheet B is "" all rows where "x" is listed in the master. Towards the end of the day however, I can have 50 visable entries on spreadsheet B spread over 500 rows.

I want spreadsheet B to display only active tasks from the top of the page down. I currently have those that read the spreadsheet filter out blank rows. Because tasks can be updated at a rate of 10 - 15 per minute with new tasks and the completion of old, I want to eliminate the need for our employees to have to filter themselves.