Today's Pond Q&A - Pond Filtration...
I have a bout a 3,500 gallon pond and I cannot keep it clean. It
is constantly murky. I have a Savio pump and Skimmer filter with
a very strong pump. The water flies out of there. I also have
lights to kill the algae coming thru the filter, yet it is always
murky. I have attached a sand filter on it and it cleaned it up
but as soon as I took it off, it got murky within 24 hours. It
seems I have magical dirt that just does not settle.
Can you give me advice.
Well, you're not going to like the answer here, but the Savio
pump/skimmer is not enough to keep the pond clean alone, and sand
filters are just about the worst thing you could possibly use on
The UV lights you're using maybe undersized, or more likely -
you're pumping your water through the UV too fast. UV
sterilizers need a certain amount of contact time in the UV
chamber for the light to be effective. Otherwise, the algae cells
pass through too quickly, and won't be affected by the UV light.
Sand filters are great for swimming pools, and polishing the
relatively clean water, but just can't handle the larger debris
and decaying organic matter that passes through them. Sand
filters will clog easily, usually require daily backwashing, and
will ultimately begin to grow anaerobic bacteria which can be
harmful to the pond life.
So, the best answer I can give you is to look at one of our bead
filters. Bead filters are designed specifically for ponds, and
are excellent biological filters as well as mechanical filters.
When used with a properly sized pump and uv, they will provide
crystal clear water - with very little maintenance...
For more information, here are some more links that might help:
** If any of the links below do not work, try copying and pasting
them into your browser window **
Energy Efficient Pumps:
Other Related Items:
Hope this helps,