Water in air system/air-bag size

[ajhaig]

We stopped by Prevost in Mira Loma, CA to have our front ride height checked (the front mud flap was dragging when we made sharp turns at slow speeds).

It turned out that the ride height was only slightly below spec (our front mud flap is lower than it should be) but they were unable to adjust the fitting because of a faulty valve. Additionally, there was some clear water in the front air tank, no water in the rear tanks. New valve, air dryer filter and we are back in business.

The conclusion was that our aux air pump, which has been running frequently (about 2 hrs/day, in 10 min. intervals) was introducing water into the air system and that water caused the front leveling valve to malfunction. Has anyone experienced this before?

Also, it was suggested that since Marathons of our vintage tend to be front heavy, we should consider upgrading our front air-bags to larger ones. Our front air bags are only 3 months old. Has anyone upgraded to larger air-bags & should we consider doing this?

Many thanks.

AJ