Around the world there are a lot of LGBT sports clubs - all kinds of sports, all sorts of levels of skill and experience, some focused just on participation and some fiercely competitive. Most of these sports clubs trace their history or evolution in some way to the Gay Games movement that begin in San Francisco in 1982.
It's pretty difficult to run a water polo team. It's an expensive sport because you have to hire a pool, and it can't just be any old pool, it has to be deep enough for you not to be able to stand up in. It's also not a particularly mainstream sport in the UK, so I guess people aren't going to be naturally inclined to seek it out. So then, how do you get the funding if the demand isn't great?