While indeed real Clarias' formulations are unique and certainly one of the best dye ink, it does not possess any special qualities that prevent clogging. However, ink of unknown quality can indeed muck up your printer. So the real lesson here is to stay away from compatibles where the quality of ink inside is an unknown. Only use ink whose source and reputation can be trusted. This pretty much leaves the only option to refilling yourself.
The effort taken by Epson to argue that other inks had been used and that it would void warranty is a tactic that they often attempt to use. If you read your warranty details I don't think it states this fact and furthermore I believe in the USA it is not legal to do so. Despite this, Epson tries this all the time and usually succeed.
Finally, Epson frequently plays hardball on warranty, and they often will try, when they spot the use of third party ink. For example if the feed mechanism is broken, they will try to link the use of third party ink to feed mechanism failure. This, to any sane customer is ludicrous but it has been attempted before. What do you do? After installing the original cartridges, do not use them till they are empty to install aftermarkets. Install the aftermarket as soon as you can and save the genuine Epson cartridges (put them away in a sealed container or bag) just in case it needs a trip back to Epson. That way, there's never an issue about the printer not being under warranty if it is within the time period. After the warranty period has expired, you may then use up the cartridges.
The effort taken by Epson to argue that other inks had been used and that it would void warranty is a tactic that they often attempt to use. If you read your warranty details I don't think it states this fact and furthermore I believe in the USA it is not legal to do so. Despite this, Epson tries this all the time and usually succeed.
Finally, Epson frequently plays hardball on warranty, and they often will try, when they spot the use of third party ink. For example if the feed mechanism is broken, they will try to link the use of third party ink to feed mechanism failure. This, to any sane customer is ludicrous but it has been attempted before. What do you do? After installing the original cartridges, do not use them till they are empty to install aftermarkets. Install the aftermarket as soon as you can and save the genuine Epson cartridges (put them away in a sealed container or bag) just in case it needs a trip back to Epson. That way, there's never an issue about the printer not being under warranty if it is within the time period. After the warranty period has expired, you may then use up the cartridges.