Even the sewerage system gets a day of its own

Today, September 10th, is Sewerage Day! The date was chose in connection to the previous post I wrote about "220 days", one of the special miscellaneous days of the solar calendar. Typhoons are associated with the "220 days" date, which in 2025 is on September 10th. September 10th was chosen as "Sewer Day" to promote one of the major roles of the sewer system: the removal of rainwater during the typhoon season.

Each year on Sewerage Day the Tokyo Sewerage museum have some sort of minor event. In 2023 it was a larger event than usual, in collaboration with the Poop museum! This year they will just have a limited edition gacha on the day. In my prefecture, Saitama, people may be aware of this anniversary a bit more than usual further to the tragedy in Yashio city earlier in the year, when a man died in the sewerage system after falling into a sink hole. Further to the incident the sewerage companies have been more active than ever. 

Earlier in the year I visited cherry blossoms on the grounds of one of Saitama's sewerage companies (pictured). I think it was the first time I ever visited a sewerage company in Japan. I had no idea until this year that they have a community garden everyone is welcome to visit. Have you ever been to a sewerage company or sewerage museum in Japan?