While outside diameter is parallel the inside diameter of the rollers are tapered towards the centre of the bucket to allow water and residue to collect in the moulded valley of the bucket base.
This valley has been specifically incorporated to allow for easy removal of grout residue with a paint scraper.
The revolutionary design of the rollers enables the full opeing of the sponge cuts for maximum rinsing and cleaning over the entire width of the sponge.
The roller ends have a slightly larger diameter to prevent water and residue spilling over the sides of the bucket.
The roller system intentionally “Ramps” upward to ensure bothe ends of the sponge are rinsed and escess water stays in the bucket
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