It is convenient to have one for hand washing and soaking clothes. However, since there is no storage space in the author's house where the washroom and bathroom are small, I used a washbasin instead.
This is fine, but this time the occupying the wash basin caused complaints from my family. What I found there was a "foldable basin".
This is a product called "Folding Soft Tab" by Isefuji. The thickness when folded is about 5 cm, but when the bottom is expanded, it transforms into a basin with a capacity of 12 L. The perfect size for washing down jackets, sweaters and sneakers.
The basin is solid and thick, and the strength is also safe. It seems to be useful not only for washing but also for gardening work on pet shampoo and balcony.
And the biggest advantage is that it can be stored in a small space. There should be a place where you can put it in a small gap in the washing machine, hook the ring of the main body on the hook, and store it in any house.
The size when using the folding soft tab is about 40.5 x 42.6 x 16.5 cm. I bought it from Amazon.co.jp and the price was about 2,000 yen.