They have a sifter on the pipe in the ocean and one on the beach. They told me its 1/2" sieve. Dont know how they push that much sand through
1/2" sieve without it getting clogged with debris. The guy told me 'lots of power' !!!!
I hit part of the beach that was filled in and ABSOLUTELY NOTHING !!!! Barely a shell. They Have learned their lesson very well.