This machine has a petrol motor and uses a continuous sponge band that is fed through a water bucket and rollers; the excess sludge and water is squeezed out leaving the sponge clean to repeat the cycle.
These machines are for cleaning cements and grouts from quarry tiles, external paviers, natural stone and granite sets.
The grout is pumped or poured into the joint; the power sponge machine is used to pass over the newly grouted area and to sponge off the residue leaving a clean surface and compact joint.
This system improves the joint quality, avoiding washing away the cement in the joint
The machines will mechanically do the time consuming "hands and knees" job of removing cementitious and epoxy grout.