Air leaking from PRV's...

[morganaire]

Hi all -

Recently brought our 1991 SP36 home and have a few issues to iron out. Never had to deal with air systems before - is it normal on shutdown to have air leaking out of the pressure reducing valves (Bendix 281857)? Noticed it several times from two of these valves - one under the coach near the rear differential and one on the driver's side of the engine compartment. doesn't happen every time I shut down, which caused me to notice it.