Need your advice on tapeing repairs???

TAKE PRIDE I.Y.W

Good day fellas
I have been asked to to repair the fine cracks that run along the edges of the tape. The house is 9 yr old,so I take it that these are settlement cracks and some nail/screw heads popping.QUESTION do I run a knife blade edge ( scratching) along the crack to give it some depth so the new mud has somewhere to bound to or do I just run another 4/6" tapping knife of mud over the existing crack??? need your advice. If running new mud over the top will the new mud eventually crack again?? ALSO what kind of price should I charge for doing spot repairs of this nature around the house??? THANK YOU GUY FOR ALL YOUR HELP.

rebel20

I find it hard to believe you are a finisher for asking a question like this.

alltex

Get some vario mud ,it works best

Mudstar

remove and re tape with proroc taping mud, its the best and a no brainer

Frankawitz

the reason this is happening is cause the bonehead who did the job in the begining didn't apply more then two coats of watered down mud. typical, The house was more then likely done by the mexican crews

joepro0000

And most likely is the builder who paid them so cheap that they had no choice but to do that. So the joke in on the builder now.

Whitey97

I thought it was normal for fine line cracking. What did I miss?