Not knowing how it works...as a new home owner I twisted the knob on
the silcock (its the one with a circular plasticky knob that needs to
be rotated counterclockwise) a bit too hard and I cracked the knob.
Last summer I replaced the knob but now its worse...there is water
gushing out from everywhere. My internal shutoff is quite a walk and
I need this working properly this summer/spring to water my backyard
properly. I hate 'the long walk' and the wastage of water and also
that the water spills on my deck that I had stained last fall.

Somewhere on the net I read that I would need a soldering gun if I
were to replace the whole assembly and that it would be a mess...I
need some guidance/reassurance if it is DIY project or not and is the
fix a simple washer and TFE tape or the whole replacement (I prefert
this not to be the problem).

Thanks,