Multiple disk space triggers setup - help

[registration_is_lame]

I want to setup multiple triggers like disk space less than 10% and 5% but I want only one of it to trigger than both when disk space is less than 5%.

I set Trigger dependency but isn't helping.

Trigger Disk space less than 10% depends on Trigger Disk space less than 5 %

If Disk space is less than 5% both 10% trigger and 5% trigger becomes true, and also when resolved there are 2 recovery emails.

Less than 10% free space
{Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}<10
Less than 5% free space
{Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}<15


I also tried this but it din't work.
Less than 10% free space
{Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}<10 and {Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}>5

[nobodysu]

I'm using trigger expression:

Free disk space is less than 1%

{Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}<1

Free disk space is less than 8% but more than 2%

{Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}<8 and {Template OS Windows:vfs.fs.size[{#FSNAME},pfree].last(0)}>2