Hi Folks, Added alum yesterday and we're seeing quite a difference in water clarity--can see down a good 3' now I'd guess.
This is not a new pond--we dug it back in 1993 and have had mixed success over the years with water clarity, algae blooms, curly pond weed infestations, etc. We've had koi in it for about 6 years (just 3 small ones to start) but they hadn't started breeding until a year or two ago. (I'd love to get some bass in there to control the population...)
We added the diffuser (finally) this spring and that's when we started having more suspended clay problems. The pond is about 12' deep at its center and has steep sides. We'll see how this all sorts out when we start up the diffuser again in a couple of day. Gotta say though that the alum is having the desired effect!
