When it came time to fill the gap between our tile counter and its backsplash, I picked up a couple of tubes of latex grout/caulk in a matching color. The stuff comes in big toothpaste-type tubes, and once it’s warmed up a bit, the grout flows pretty well — or at least it does until the tube has been reduced to about one-third full. At that point, the tube becomes so small that it’s hard to compress enough to squeeze out the remaining grout.
To get a better grip on the diminishing tube, I turned to a couple of spring clamps. I used one to clamp off the bottom of the rolledup tube and the other to compress the remaining wad of grout. I found that by varying the pressure applied by the clamps, I could regulate the flow of the grout, right down to the last little bit.
Charles Miller, Newtown, CT