Hi All. New to this forum, so be gentle with me? I’ve just had new conservatory built, new slab, insulation and screed. Checked over the screed before laying 12mm klick laminate ex B&Q, but obviously not well enough. I was about half way through the 11 packs of boards when I cam across a hollow about six mm deep. This was on top of the green wood pulp underlay (also ex B&Q) that I was advised would give some more valuable insulation to the Conservatory floor! The builder said “……..it’s a bit too late now to get the screeder back to latex it, here’s some thin polystyrene foam underlay, cut some strips and add as necessary” This worked OK for a few weeks, but it’s starting to bounce and squeak, and il concerned it’ll start to split/separate soon. Query…… Can I buy a suitable self mixing two pack adhesive, drill a small hole through a convenient knot, and slowly inject it into and hope it seeps sideways, to fill out the void? Any recommendations on any alternative methods? Any recommendations on most suitable two pack adhesive? Or am I just plain and simple, bloody dreaming? Remember, be gentle!!!