crwdns2893792:0crwdne2893792:0 Henry H ,
crwdns2893800:0crwdne2893800:0:
If water flows through the portafilter when there's no coffee in it then it's very likely your pump is failing and needs to be replaced. That's assuming nothing is leaking while it's running (ie. the steam wand).
crwdns2892198:0crwdne2892198:0:
open