printer keeps blocking

i have an epson p50 inkjet, and a ciss sytem.
The problem is everyday i come to use it the nozzle is blocked i have run nozzel checks and taken out the print head and flushed through several times with cleaner.
But it still clog's surly this inst normal is it.
What could be wrong bad ink, the ciss system bad nozzle, the printer is 2months old and running a ciss system and ink from coralgraph.
Thought about useing the refilable cartridges but unsure if it will make a difference any help would be appreciated thanks.

Justin has the P50 so perhaps he can help. Specific support is limited to fellow users when a non-standard printer is used. General advice may be forthcoming, but it could be the inks, the ciss or the printer - undoubtedly it is one of these! I'd guess the ciss to be the first thing to look at.

I would be surprised if it is not an air leak in the CISS, and your printer is fine. Swap out for refill carts to see where the problem actually is.

Same advice as above, rule out the CIS by checking with original or refil carts. I've run mine for a long time now with refil carts and done 2 maybe 3 head cleans in it's lifetime.