~ jan wrote:

The other day I cleaned my pre-filter. When I do this I also lower the
water about half way in the bio-chambers that contain open cell foam. My
foam is now on its 13th year. (Gosh, how time flies!) It now is starting to
fall forward when I lower the water level and the one side would not behave
even when I brought the water level up and turned on the pump. It wanted to
continue to slump. I ended up putting this coarse matala pad I got to try
in behind it to support it.

So now I'm thinking, I need to bite the bullet and buy the fine matala to
replace the open cell, or at least most of the open cell foam. Maybe keep a
pad or two for the middle.

Just wondering if anyone has an opinion regarding this. I was wondering if
I have to have the same 8" filled with media (horizontal flow, current
media is approx. 22" X 30" and then eight 1" pads deep)? Anyone know of a
website that is selling it in rolls at a good price? ~ jan
------------
Zone 7a, SE Washington State
Ponds: www.jjspond.us


I have been thinking about this also. I had planned to make a "skippy
filter" using a 150 gallon Rubbermaid stock tank. I'm just not sure about
how to configure the pads. Should I lay them flat or stand them up?


San Diego Joe
4,000 - 5,000 Gallons.
Koi, Goldfish, and RES named Colombo.