Pompelmo is Sanpellegrinos grapefruit bev just as the limonata is their lemon bev. They are now a staple in my local food shop because i spoke to the shop owner and made him try and taste those beverages and he got so hooked on them that he decided to always carry Sanpellegrino, the whole line.
Maybe worth a try?
I mix it with JW&N overproof rum, lime and ice or Havana Club blanco or 3 years, or Appleton white, or Campari, lime and ice.
But these Pellegrinos are also sooo nice with just some ice..
There is a type of sweet grapefruit called Pomelo but thats a whole different fruit.They are also very nice.