MSEK Services is Grafton's first mobile pool shop that has been operating in the Clarence area since 2004. Personal service when you need it for swimming pool and spa maintenance on a routine basis both residential or commercial if required as well as on site computerised water testing. Every pool is different, not everything can be treated with chlorine or acid and what works in one pool may not work in another, actually going and looking at the pool can make all the difference to how its treated.