For hotel public washroom sink, in my opinion, basin waste plug and chain is hotel public washroom designers' best chioce. There are two reasons, the first one is that basin waste plus and chain can be used as two basin waste. When it closed, it can store water just like pop up basin waste closed. The second one is when the plug moves, it makes water free running just like free running basin waste. However, comparing to free running basin waste, basin waste plug and chain's biggest advantage is that it has chain, nobody can take it away and it looks more high-end. Therefore, it's best chioce for hotel sink to use basin waste plug and chain.