Hey guys,
Just wanted to post this question separately since my other thread is getting long.

So as most of you know , big problems with my new engineered flooring. Squishy ( deflection is the proper term I believe) and hollow areas. Installer is coming back this Friday to repair with Dri Tac, however, has not seen all the areas and doesn't know how big some of them are.

Largest so far is 4 1/2 x 3 1/2, several 3x3 and 2x2, a few 1x1. 18 total. This is not including 3 other rooms that I'll be looking at tonight and tomorrow.

What is your recommendations regarding large areas?? ( not sure what is considered a 'big' area ) Dri Tac ok? Should there be a total redo on the big areas?

Oh, and one last question, what the heck happens to the flooring if the repairs are not made?

Gravity, becomes your best friend.

Don't stop the installer from the repairs.
If they don't work, don't pay.
They may have to pull some planks, fill the sub-floor and re-install some planks.

WhatyaThink Floorguy?
By the way;; Floorguy is my Dad.

That's cool! I was wondering why you said "He taught me well" in my other thread.

No, I don't plan on stopping him from making the repairs......I was just curious if he says that the smaller ones don't need to be fixed. So that's why I was asking.

Yeah, what do ya think Floorguy??

Sounds like the nightmare could get worse in that scnerio. One would have to remove a large area to flatten it to some sort of spec. Let's not forget about moisture that's used for those kind of compounds.

Good points Ken. The Dri-tac would work, but large areas have been removed to fill if the low spots are too big and too deep.

Hard to tell from here

Breakout the ¼"x½" notched trowel!!!!!

Ok, now what does that mean? I am guessing that they will need to pull some planks and start over?

Floorguy is suggesting to remove planks and use Larger Trowel to fill the low spots......
More glue rather than cement patch.

Not sure how that workds 5 or 10 years down the road....