Thank you to everyone for the warm welcome and help!
The mystery, per se, here is definitely within frequency. I’ve had this fountain (it is made of concrete as one noted above) and never had this problem until this year. So, first go around I emptied, scrubbed, replaced the pump, and refilled. Now, within six weeks. it’s back. I thought, perhaps, a soak with a mix of water and bleach may help but I’m uncertain of the porous properties of the material(s)—so, I wouldn’t want to risk that some chemicals could remain.
Another consideration—my back doesn’t take too kindly to moving this (even tipping it to empty—it’s incredibly heavy even sans water) with any frequency as the result of a serious back injury many years ago. As that injury ages, so am I—which doesn’t help my cause.
It is also very slimy. Some of the pieces that first became evident reminded me of bracket fungi—though these pieces were small. But they were definitely not firm—very mushy. Since the fountain has been dry and receiving a lot of sunlight since yesterday, it looks like nothing more than some dusty dirt, now that the environment that was allowing it to thrive is gone.
Is algae borne from a spore as mold is? Perhaps it wasn’t cleaned as thoroughly that first go some weeks back??
Thank you, again!!
