Ken Kociolek wrote:
Can someone explain to me how the three section Laguna filter is
supposed to work? This is the one with the bio material in one
section, and a foam type filter in the second and third sections. My
question is regarding the third section; furthest from the pump. This
one does not seem to "filter" anything, while the middle section clogs
up so fast I have to clean it every other day. Any comments on why
this happens?

Well, it's not really a 3 stage filter, both foam sections have pond water
pass through them at the same time. The middle section does double filter
some of the water from the end foam section.

The middle section most likely filters more water than the end section as it
is closer to the pump end, and thus gets more "suction" power than the end
section.

With mine, the 3rd section, or 2nd foam section, gets just as clogged up as
the 2nd section, or 1st foam section.

Once summer is here, I need to clean the filter weekly, more like every 5
days.

What size pump you running?