Open bed filtration

[urglik]

i searched the forum a little for this idea. not sure if it has merit.
seeing the effect on water clarity and health that a 100 foot watercourse that is only partially filled
with rock at this time has on my pond, if one had a little space, perhaps they could dig trenches parallel to one another
perhaps 6-8 feet long and 12-18 inches wide, 6 inches deep, line them, and fill with pea gravel to 4-5 inches
and send the pond water through that.

 

[Meyer Jordan]

4 or 5 inches deep is 'overkill' if you plan on using the same flow rate as a stream.

 

[sissy]

Reason it is helping the rocks are catching the gunk and aerating the water .Rocks in stream may need clean eventually .I use a ball valve to spread water around in my pond besides and aerator .More air means better water quality

 

[Mmathis]

Try it and let us know how it works!