Grout removal

I have a tile patio with 1/4" grout lines between the 16" tiles.
In a few places, the grout has cracked and disintegrated, probably due to thermal expansion.
Prior to replacing the grout, what is the best way of removing the remnants of the grout from the spaces between the tiles.
Somebody suggested the HF Multifunction Power Tool ($ 19.99). Would this work? Any betters suggestions?
Thank you
--
www.rationality.net


Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

Might do, but 1/4" is pretty wide and a patio is pretty big. If it's a small section, a hand grout saw will do. If I was re-grouting all of a patio more than about 10' square, I'd use a circular saw with a masonry blade. Have to carefully set a guide, and best to have a vacuum attachment. That would be fast. Never did it, mind you, but I've cut pavers that way. I'd use a straight 2x4 or angle iron as a guide with sandbags keeping it in place. Don't want to hit the tiles.
--Vic
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.