Feeling #singlemom baller for learning about draft hoods, dripping vents, negative air pressure, and pressure relief valves at 3AM last night (and shutting 'er down properly) so I could learn to flush the tank and otherwise do a hot water system cleanup/reboot this morning. :P
Having also now learned what happens when you open the cold water valve to finish flushing out an emptied tank, without knowing you needed to flip the pressure relief valve back down first. 🤯
At least THAT catastrophe got three shrieking 8-year-old girls interested in learning about valves and operations and venting of a gas hot water tank #nexttimeitwon'tbemyjob
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Pic #1: MERV 12, MPR 1500 @3M@Filtrete, at 8:30AM today. In use nonstop for 1 week, in SF, in a bedroom with doors/windows shut. Taped to a cheap box fan on medium setting (2).
Pic #2: the same filter, at 6:30PM today. Outside AQI was 200-230.
Per the @nytimes, 87% of smoke particulates are removed from a room within 35 minutes, with a box fan air filter on a medium setting. (In an unfair comparison to expensive purifiers being run on high....you can also run the box fan on high!)
Pro tips: 1. Seal all air gaps with either gaffer or duct tape (see pic) 2. The filter can go on either the front or back. Pick the side *farthest away* from the fan blade, to get the most air flow. If you like, go even farther by adding a cardboard box (picture a wind tunnel!)
PS Interested in Hamilton-with-kids? See thread for our cheat sheet. @GSNorCal@zoom_us
1. Set up a @zoom_us meeting, and make sure to have a couple of breakout rooms. Kids get bored on text-only, and Zoom supports video sharing during the show. Also, if (when) any kids get chatty, they can 'take it outside' into a breakout room, while the show continues for others.
Heard from my daughter's 4th grade teacher that alternate-day school attendance is being considered for next year - eg, K-2 on Mon/Wed, 3-5 on Tues/Thurs
(thread)
Pros:
- dropping daily attendance from 520 to 260, in the same physical space, makes distancing more feasible
- school 2 days/week should mitigate most of the social/emotional toll that kids are going through
- less scrambling by parents to home school
Cons:
- home 3 days/week means parents must work from home 3 days/week ongoing
- parents without remote-work jobs must scramble for childcare, as well as 'substitute teachers'
- parents must continue to manage lesson plans for whatever subjects/lessons aren't covered in-school