Blocked MDPE pipe

[alokpanda123]

I DIY’ed a MDPE pipe from a tap at the house front to back into the garden (buried, about 20 meters length). It did work flawlessly for a few weeks, but doesn’t anymore - possibly air blocked? I did open it where it was connected to the tap, everything seems fine with the pressure. Am running out of ideas now.

 

[dilalio]

Take the tap off at the far end, to make sure it isn't that which has failed.
Airlocked? On mains pressure? Doubt it!
Is it a full run of mdpe or is there a joint in it underground?

 

[blup]

Swap out for a new tap, far more likely than plastic failure

 

[alokpanda123]

Thank you. It was indeed the tap. Plastic wins.