Gaggia Classic cleaning

[CAPP0]

Had an issue with my Classic where it stopped pumping properly, so I stripped it and checked for blockages but still wasn't right so in the end I ran some vinegar through it to clear any calcium. Bingo, pressure came back within about 150mls of vinegar pumped. Result.

However, I then cleaned everything in Cafiza, and then ran two full tanks of water through to flush, but the coffee is very far from right! Nasty aftertaste clearly caused by some chemical or other.

Any idea either whether I need to run more water through (and how much) or do I need to use something else to remove any chemical residue before good coffee returns? And if so, what?

TIA.

[sherman]

Try rubbing your fingers in the water that comes out of the machine. If it feels slimey then you will have cleaning stuff in your machine still. P.s this is not hse approved advice.

If its not slimey run some cheap sacrifical coffee through until it tastes right.

[CAPP0]

Thanks, will try that.