I think it’s the shoveling and raking: but she is in acute misery. A day on muscle relaxant, and she’s still having spasms—something about planting: a dogwood, a magnolia, 2 rhododendrons, an azalea, pulling weeds from the entire garden path (about 300 feet loop) raking grass, sorting pine cones, pulling (a real tug of war with our pond pump) and washing the algae filter…

Yesterday we went out to the valley and got some nice water hyacinth to clean up the water in the pond. This soft plant will not live through the winter, so we are dependent on getting it new every year—-it’s huge, about a foot across when adult, so we can’t winter it over in the basement. It has very pretty purple flower-spikes during summer. We filled a floating ring (think of a hula hoop) with them and have tethered them in relative position over the pond. We have 4 lily leaves at the surface now, and the lilies will also help water quality.

If the hyacinth can just reduce the algae, and if the UV filter arrives soon, the pond will become relatively care-free for the summer. This was our first year bringing it out of winter with fish and a full biological load, so we made a few mistakes: Jane says we should have drained it down to half for starters, and I think that might, indeed, have helped. But the problem is, Spokane water is lousy with phosphate (getting better, since the ban on phosphate detergents) and phosphate drives algae. So if we fill it up by half again, we’ll be adding a load of fertilizer.

Ah, the wonders of water chemistry. There is a chemical phosphate remover. In marine chemistry, that tends to be granulated ferric oxide (iron), and I’m not sure I want to dump that into the system—in ponds and tanks with no outlet, what you add stays there, and it takes gazillion-many water changes to get rid of it. It’s also why an excess of some mineral in your water source can get worse and worse and worse in a no-outlet system, because evaporation takes out the h20 only, and everything else stays behind.

So for that reason, in Jane’s plan, we’d be removing very-very-very phosphate-laden water in exchange for water that has only a single load of phosphate.

I think she’s right on this one.