tubful
One soaking load
A tubful is the amount that fills a tub—whether a bathtub, washtub, or storage container.
The word emphasizes quantity rather than the container itself: She did three tubfuls of laundry.
Like handful or bucketful, it measures by container capacity.
bath
Saturate with liquid
bathing · washing · cleansing · rinse · laundry · soaking · steeping · immersion
soak
Saturate with liquid
warmth · bathing · washing · cleansing · rinse · laundry · soaking · steeping · immersion · splashing
volume
Amount of space filled
amount · quantity · load · bulk · measure · filling · holding · contents · limit · size
overflowing
Exceeding capacity, spilling out
plenty · excess · lots · masses · overflow · spilling · loaded · packed · stuffed · crammed