In Reply to: patio paver posted by Hank on August 28, 2017 at 17:57:47:
I installed pavers on a sand base. ...Ants carried the sand up, individual pavers sank while others raised. ...Weeds grew between the pavers.
I removed all those pavers, poured a concrete slab, and re-laid the pavers on top. ....Filled joints with polymer sand. ...Weeds still grow between pavers.
Good luck on keeping weeds out !!