hidden hull damage

[JUST PULLIN MY DINGHY]

After having my hull soda blasted by Chris, from Gale Force sodablasting ,who did a great job at a resonable price there was many layers of paint. I found two repairs one on the keel up front that looks like a block went thru when winter stored one year and the other in the starboard pocket at the stern.how can i tell if there is delaminating going on our not ? i will try to attach pics thanks.
Ernie

 

[katricol]

You could try sounding the hull yourself or ask at your yard if someone knows how to do it. You just need the right hammer (can't remember the name..penbolic? phenbolic?) anyway any serious damage would show up this way.

 

[trit21]

phenolic hammer.....pretty close.

 

[JUST PULLIN MY DINGHY]

thanks.I will look into that i got someone coming to look at it , I will post the results
Ernie