[Jonny 87]

10 years for my 100psi , not even had a PS yet

Rich

12 years for me.
Every now & then I think about having getting a spare.
Never have.

Out of curiosity have you bypassed the pressure switch too?

I've just noticed on mine it doesn't have a pressure switch, I use a flow control which does the job for me. Mayb this is why the shurflow last so long for some......

No mate, pressure switch is wired up.
Just as I bought it.

Ah ok. Thought i was on to something there. Lol.

[trippyboy]

Mine has lasted over three years, most weeks I work between 5 and 6 days.
It has never given me any trouble at all , I did take the pressure switch off from new and use the flow control one instead though.

[Steve foster]

 mine is over 10 years old. The pressure switch allen key adjuster is backed all the way off and still works as it should do. I am using the old type controller at setting 4/5.

[EandM]

100 psi Shurflo, coming up 10 years old. Replaced the brushes about 4 years ago and have a separate, heavier relay that takes the stress off the pressure switch.

[duncan h]

100 psi Shurflo, coming up 10 years old. Replaced the brushes about 4 years ago and have a separate, heavier relay that takes the stress off the pressure switch.

I think the problem is exactly that. Yours was build years ago. Quality will be the pits now, as is everything.
Mine is less than a year old. Every time I turn it on its a different flow rate