What's crushing them in water and floating to the top anything to do with whether a tablet is fake or not!
When you buy from this site you guarantee getting original MTS products which are all genuine,so you don't need to have any concerns,where as buying MTS and other labs from other resellers/suppliers you risk buying an inferior product.
That's what this site is here for,to give people the opportunity to buy original genuine MTS products with no issues of product quality.