Due to the unique conditions this year (a warm, very humid spring, heavy pollen fall), we have a special situation in many ponds with floating algae growth that is so strong that "normal" doses of algaecides are sometimes not enough. What can be done in these cases?
You change products for the second treatment. If the first treatment was performed with JBL PhosEX Pond Filter *, the second treatment is performed with JBL AlgoPond Forte *. If the first treatment was performed with JBL AlgoPond Forte *, the second treatment is performed with JBL PhosEX Pond Filter *.
The treatment must be repeated twice within 4 - 5 days. The treatment must be repeated twice within 4 - 5 days. This will cause algae to die, lots of them. Even if that is not readily visible initially, it can be seen under a microscope or shown by measurement technology (cloudiness measurement).
Caution: This produces a large amount, up to several cm of pond sludge. Make sure to siphon out the sludge, as otherwise, the problem will be back in a few weeks! Nutrients have to be removed!
After siphoning out, use JBL SediEx Pond to activate the biological processes at the bottom of the pond.
With sound and conscientious care, you can have a pond free of algae trouble, even in a troublesome year. Try it, you'll like it!
* Product labels according to EU Directive 98/8/EC: Use biocides safely! Always read the product labels and product information prior to use!