XP2 losing pressue

[BigA]

Last night I have had a problem with my XP2. The amount of flow coming out of the spout is fluctuating It was running fine when I went to bed. When I got up, the pressure coming out was varying kinda like this




It does sound like it is sucking in air from somewhere, I rechecked all the seals and hoses this morning before I came to work, and all seemed visually fine. Also there is not any water leaking anywhere. Dry as a bone.

I admit that I haven't cleaned the filter in a while, could this be the issue? Is it clogged? Or maybe a mechanical issue? Needing a new inpeller or new seal? Anyone have any thoughts?

Thanks for the help.