We are getting ready to pour a basement slab (hydronic).
4" of sand under 6 mil poly, with 2" Styrofoam on top of the poly.
And then the rains came...
You just can't trust the weathermen.
We removed about 20-30 gallons using towels and buckets.
And then the rains came...again. (My wifes's Bissell works better than the
The water can't pass throught the foam or the poly.
The pour was supposed to be Tuesday but rain is predicted for Monday and
Tuesday, and I still have to put down the wire mesh and zip-tie the Pex
tubing, so I have put it off until Friday.
My questions are: Should I worry about water trapped between the foam and
the poly? How much would be too much to leave there?