HI,
Yes, you can build filters yourself and it's more fun, too.
There is a wide variety to choose from. Here are some links that may help:

http://www.mikebentley.com/ponds/homemadefilters.htm

http://www.clean-garden-ponds.com/pondfilters.htm

http://www.skippysstuff.com/biofiltr.htm

Mark

"Superkitt" wrote in message
. ..
Okay.. my first pond and now the weather hasw warmed up and I a pea soup
pond.

Will a filter help with this and can I build one myself?

Its a 500 gal pond. 3ft at its deepest point with a 1000gph water feature.

Joel.