5 Things to Know About Robot Vacuum Water Tank Sizes

Smaller tanks mean more refills Most robot vacuums carry between 200ml (a teacup) and 750ml (a standard water bottle). The smaller the tank, the more often you’ll need to stop and refill it.

200ml works for small apartments If you live in a small apartment, a 200ml tank is fine. You can finish mopping without refilling.

Larger tanks suit bigger homes For anything larger than a small apartment, aim for the bigger end of the range. Otherwise, you’ll be refilling mid-cycle.

Tank size directly affects convenience A 750ml tank lets you mop multiple rooms or a whole floor without interruption. It’s worth the trade-off in added bulk.

Check your floor plan before buying Measure your space and estimate how much water you’ll need per cleaning session. Match that to the tank size to avoid frustration.