The Cutrine granuals work good, but they are not a "once and done" proposition. The algae will come back.
But where you are mostly worried about the dock area, it is a quick fix and you could just treat the area around the dock. That will work unless other areas get bad enough that the FA blobs up and the wind blows it to the dock. Treating around your whole pond that size would not be cheap. Treating around the dock and a ways each way from the dock not bad.
The trick to controling it, in my reading learning and also experience, is you need to treat early. If you wait till it already appears to be a problem, you are already behind the curve.
When the water first starts warming in the spring, the FA starts growing on the bottom. It may have already started as warm as recent weather has been. Treat it as soon as you start seeing it. It will die quickly and the treatment will last several weeks. Then when you start to see regrowth, you will need to treat again. Probably 2 to 3 times a season.
You have a beautiful lake.
Thanks!
I'll get some chemical soon and see where that gets me.
I'm also drawing up plans for anot her dock. Have some 40ft trusses found and currently looking for barrels.
I suppose a cheap way may be if you have a boat motor you can clamp to something locked in place to blast the silt and algae away from the dock using the power of water. Sure it will stay in the pond and be cloudy for a while, but it may be an easy way to clear up and deepen around the dock.
Otherwise leave the dock where it is, add a new one for swimming where the access and water is better.
Don't have a boat with a motor or I would try it!
Thanks.
