Ignore NFS

I searched the archive and found a few posts about monitoring nfs mounts.

But how can I ignore nfs mounts from showing up?

 
Weekly ignite backups mount a filesystem and unmount it. 

I would like to ignore this filesystem on the clients but have it monitored
on the server. 

 
How can I go about this?

 
And also how can I delete the extra chart that it created today.

 
For now I just set the default higher so it would not page out.

 
Thanks

Richard