WesTech GAC contactors can be supplied in an open-top gravity system or, more commonly, in pressure vessels. They are typically designed with a conical underdrain for convenient GAC replacement.
By contrast, the HomePod is essentially an extension of the iPhone, like an accessory. When someone asks the HomePod to open a third-party app, the request wonât go directly to the cloud, as with the Echo, but to an iPhone. As a result, developers can't write apps for the HomePod. They must create tweaked versions of existing iPhone apps.
HomePod UK price and availability The HomePod will cost Â£319 in the UK and $349 in the US. Despite the supposed excellence in audio, this is an exceptionally high price - markedly higher than those for the HomePod's nearest competitors. The Amazon Echo is priced at Â£149.99/$179.99, and its cheaper Echo Dot is available for Â£49.99/$49.99, while the Google Home is Â£129/$129.