I have two small waterfalls into a koi pond. One of the waterfalls' strength diminishes regularly over 2 or 3 days to a trickle while the other is strong. I have backwashed, cleaned out both leaf traps in the pond and in the pump. This restores the waterfall but then it fades again. Each time there is not a lot of debris in the leaf traps. Just backwashing does the trick. Is there an air blockage ? Please help.
Hello Alan,
Tell me a little more about your filtration system. More importantly about your
PRE-FILTRATION system. When running a bead filter it is super important to have great pre-filtration.
A bead filter is best served as a biological filter. However most of the time bead filters turn into biological filters & mechanical filters. When you ask a bead filter to become a mechanical filter too, it will ususally bog down very quickly. Typically, three days to a week and then you will see a decline in water pressure until you backwash the filter.
I don't think that you have any air blockage if you have good water flow for a couple days and once you see a decline in water pressure fix everything with a cleaning of your filter.
Tell me more about your plumbing in the waterfalls. Is there a tee somewhere in your delivery line to the waterfalls?
If you have a tee in the return line to the waterfalls and one run is just a bit longer than the other, once the pressure is lost from a clogged bead filter, you will loose the pressure in the longest run.
If this is your problem then improving your
PRE-FILTRATION will really be your solution.
Looking forward to your reply.
The Pond Digger