Replace. I have used this company for my whips: High Pressure Hose - August Industries Inc.
Look carefully at your August Industries HP hose does it give a date of manufacture or even a manufacturer? No.
All the August advert says is its "Premium high pressure" and the other reasuring words "Excellent Strength"
with the ubiqutous "Equivalency Parker 527BA" statement whetever that means when its at home.
Crap from China may be a more honest position to take when making an informed choice.
None the less when the Hebei Orient Rubber and plastic company out of HeBei China make equivalent high pressure hose to "equivalancy" you can rest assured that most of this crap goes to the likes of Iran Russia and Brazil
Then to the USA for premium customers in scuba LOL
This is a problem we all face in this so called scuba industry getting quality components at reasonable pricing without the misleading junk we have to wade through to get informed.
I just wonder reading these adverts why all the HP and LP hose recalls in this so called scuba industry? Miflex Phantom etc etc makes you wonder what's going on..... Crap from China would be a good place to kick off from. But how do we make an informed choice is the question.