Working as a plumbing showroom consultant for many years (past life) I dealt with many architects and designers. All used different product. Offen depends on client/budget. Usually best to give them (suppliers) an idea of what you want and they will come up with value for money options and know what brands offers decent aftersales care. . minimal fuss... As for exact brands.. that will depend on where you shop or have accounts with. Once you find your sales person.. you will be in business. over the 14 years I was in that industry I helped many-a-design student with assignments, many of which I then received many orders from! ! Any standout service you have received? ?

ps who is the course through.. Im interested in one myself. ..