Hello: I wonder if it worked well? We have pavers and whenever we power wash them all the sand between them gets washed away. Also when it rains heavily ( and it does here!!!) it washes away the sand and the empty spaces get filled with dirt ( as garden work is a bit messy) We constantly have things growing between the pavers and then I pull them out and remove the rest of the sand and dirt with it.It is constant battle.We were told that polymeric joint sand should do a job as it sets as concrete.We had it done ,but they run out of sand and did not use enough?As the weather clears they will come back to put more.So far I am not impressed as the water poured on it washes it away? Maybe it needs more time? Any feedback would be great.Without re- doing the whole thing is this a good option? Many thanks..