Firstly I'm not a tiler but have recently had a pool installed inside our home (pre constructed off site). I just wanted to highlight that anyone looking at attempting a DIY pool please do read up on the requirements for pool circulation, so that you do not put bathers at risk of entrapment (sadly there are several death a year - albeit often in foreign pools). And equally important is the DAILY maintenance of the water quality to prevent damage to pool equipment & staining etc, and awareness of the poor water quality health risks, such as legionnaires disease (also a potential killer). This means a good water cleaning system, understanding of the importance of the correct water level being maintained, knowledge of pool chemicals and a daily testing routine ( & ability to rectify any imbalances) - though you could employ someone to do the latter at around £100 a visit . Otherwise, you risk creating a death trap - really it is as serious as that - and if you don't approach it along those lines, you really shouldn't be doing it ! Indoors you also should be thinking of effective clean air ventilation system and an appropriate (permanent) dehumidifier (not cheap). Also have a think about what materials are suitable on your walls & ceiling - not just your floor. There is a significant amount responsibility and ongoing costs that comes with a pool (and even more so with a jacuzzi !)- its really something you need to do plenty of research on. Yes, its a great facility to have in your home but I would say if you don't have the commitment akin to looking after a pony, then its probably something you should leave in your dreams.