Digital BW, The Print

Last night I had quite a battle with my new Epson 1430, which I am using for color printing. The old 1400 is now a dedicated B&W machine. 

It seems the black ink head was quite clogged and I emptied a full set of cartridges (MIS, not Epson!) doing head cleanings before I finally got a good nozzle check. 

This got me thinking that I really should get some head cleaning fluid, but which one to buy? Most of the commercially available fluids are nearly as expensive as ink - and are probably just distilled water and a bit of ammonia and alcohol. 

I have nearly a pint of PR-Clearbase-PT solution. Any thoughts as to how this would work as a head cleaning solution? Should I add a little ammonia and/or isopropyl alcohol?