Wrong decisions

My original Epson 4 ink cartridges( 4 colours -magenta, cyan , yellow and black ) are all empty . If I buy the original refill cartridge of 15 ml, itwill cost me RM 100 for the 4 colours. Someone over the internet suggested that I buy this CISS- Continous Ink Supply System which looks like the drip that hospitals patients use, which costs only RM 100 and it is equivalent to 10 sets of that 4 cartridges. iIn CISS set,each bottle for each colour is 120 ml. On the box it is written-easy to use.

Now why I regret ? Because it is not easy to set upat all . It is a very messy setup and it is not easy to avoid bubbles during the filling. The worst part is you need to take the cover out from the printer head casing and we took 2 hours to do just that!!! And this evening when I came home I saw all the colours has sedimented so I guess everytime I need to print I need to shake before use .