Can anyone recommend any laundromats that they'd recommend? I am on singleton campus and the washing machines here use Circuit which, judging from the reviews, may not be worth using (avg. of 1.1 stars from >2k reviews).
In regards to the washing facilities on campus, the Circuit mobile app is used like you have stated. Most students find this to be the most efficient way to do their washing as it is so easy to access on campus. If you'd like to find out more information on the Circuit app, please feel free to use the following link to learn more: https://www.circuit.co.uk/how-to-guides/circuit-laundry-app/ .
Away from the campus, there are many local laundrettes that are nearby. The closest one, from my understanding, is Brynmill Launderette ( https://www.brynmilllaunderette.co.uk/ ). This one is approximately a 15-20 minute walk from Singleton Campus.
They all appear to be quite accessible and could definitely be launderettes that you could look into. It might be worth contacting them to gain a better understand of their pricing and the services they offer. All of the contacts details can be found on their webpages.