Thick wallpaper paste like substance inside pipes and filter

[AMG]

Found flow rate has slowed down, pipes and filter clogged with this white/brown jelly like substance. Cleared it completely but it has returned within a week. Any ideas what it is and how to to treat? Many thanks

 

[Mmathis]

Hello and welcome!

A little more information would be helpful. What kind of equipment, size of pond, time in operation….?

 

[j.w]

@AMG
Maybe a photo would help?

 

[GBBUDD]

Photos are a must not just the substance but of your pond.

 

[Mmathis]

@AMG Are you still there…..?