Seems as though everything driving wise in this new to me motor home runs off the air system. Pressure holds pretty good @ 100 - 125 lbs. Problem is, I think the air dryer purge valve is "weak". Purges every 45-60 seconds now. Don't have time this week to replace or rebuild it. Can I put a pipe plug in the purge valve dump port in an emergency and the rest of the system work normally. I realize I would have to manually dump the air tanks. I am talking about 65 miles 1 way and back 2 weeks later.