(morning writing)

[elainegrey]

In good news, Dad's sweetie is home with mega antibiotics for lung infection -- but not TB. Which also means her dog Jenny is home with her, and Christine and i can quit strategizing about how Christine could take care of Jenny while Dad and I join other family in Arlington to "inurn" mom's ashes on Wednesday.

Wah, i took a major spill and scraped up both knees (blood dripping down my leg, hem of dress) and my left forearm. I did something to my right wrist, my back is complaining, and all together feel whimpery. ... And the mower battery failed to charge so i guess that's the universe telling me to stay in. This will join the flush of bruises and petechiae that splashed across me last weekend. At least i know where these marks came from.

Turns out the hydrogen peroxide expired in 2017. It stung a little -- although maybe water would have stung.

Also, it turns out bleach isn't reliable for disinfecting after 4 (or 6 ) months. The county hurricane preparedness guide notes to only use bleach less than 4 months old. I look at the barely used gallon of bleach that i do not know when i bought. Sigh.

The Frankfurt school of philosophy looks interesting. Christine is probably right that i am not up to reading philosophy right now. Maybe when i retire.

I've been meaning to dump some plant trays with water but now they are swarming with tadpoles. We'll transfer them to the small wading pool i have submerged as a test pond (test passed; don't have time or energy to go the next steps) sooner or later --  before they become interesting prey.

Comments

[elainegrey]

Both chemicals are unstable and release energy as they decompose. I suppose it makes sense that you'd want reactive chemicals to drive disinfection.

I suspect better than nothing is correct.

Chlorox claims when stored as directed it's good for household disinfection for a year. From the skimming i did, the manufactured level of household disinfecting bleach needs to still have a certain concentration after a certain point but the concentrations at time of sale can vary a great deal. I suspect the four month lifetime had to do with the recipe -- given an average manufacture of bleach and the rate of decomposition, the recipe for dilution was valid. I suspect when creating a potable water recipe the challenge is getting it disinfected while still being safe to drink. If you are cleaning, going to a "too high" concentration isn't as much as a problem/risk.