Some slow release fertilizer contain actual liquid inside the balls. You can literally “pop them” and liquid fertilizer will come out. They aren’t eggs, and i’ve seen some come in gray and yellow colours but i‘m sure the whole rainbow exists. Someone mentioned root nodules, which would only be the case if they were directly connected to the root and looked like a hard, solid tuber inside (these are common but not limited to alocasias and calatheas for example). Fungus gnat eggs are practically microscopic, and unless your plants have direct access to the outdoors it is unlikely (but still possible) for it to be snail or slug eggs. What most of you are seeing are simply slow release fertilizer, if it’s truly bothersome you can buy organic potting mix that doesn’t contain any. Any generic potting mix from your nursery or garden centre, such as promix and miracle grow will contain these fertilizer balls and likely already in the soil your plant comes in from the nursery or store. You can literally sift through your new bag of potting mix and find them. If you truly believe them to be eggs, again unlikely, scoop them out and wait for them to hatch lol. You probably will not have bug babies but maybe you can gain some peace of mind.

Gypsum is Calcium sulphate dihydrate. It replaces sodium in the soil and increases infiltration rates and decreases dispersion/erosion of clay particles. There are formulas on how much to use. An expensive solution to heavy clay soil is to excavate it and replace it with Sandy Loam soil with 20% compost. The expense is in the labor to remove the clay. Or build an 18" berm/little hill of Sandy Loam on top of the clay soil and plant on the berm. Be sure to till a little of the sandy loam into the top few inches of clay first. Adding compost, not mulch, to the soil also will help. Adding mulch, on top of the composed clay, to keep the soil covered is beneficial. Adding cheated iron helps to release the calcium in the soil so the plants can 'drink' it.

We did use the liquid soil aerator, and it worked great for us. The back of my yard was too shady for grass, so I bought some bulbs to plant last winter. You couldn't get an inch down in the soil. My husband tried a power drill with a wide drill bit, but even that wouldn't go into the soil. I ordered the aerator on line, not expecting much. I am happy to say, we are now planting bushes and shrubs in the back with no problem. Also, we have used this in our entire yard, and our grass was beautiful last year. Now, we did use it more than once. I think all together 4 times in the trouble spots, but after the first application, you could tell a very noticeable difference.

Just to say, the filter on that 1977 Maytag did catch some lint, but it was a "passive" system depending on water currents circulating into the agitator barrel and wasn't as effective as it seemed ... not like an active filter via flow from the machine's pump. Not unusual that people aren't aware that those Maytags have a filter and leave it neglected and uncleaned literally for years (like my sister) to no obvious ill effect (of lint on the clothes). :-)