[Alex]

Hello Art – Agree… seems they do not last very long.

I have replaced them twice in just under five years of Prevost ownership. Since the first time, I only replace those on the wet, primary, secondary, and aux tanks; and, have PLUGGED all ping tanks.

With a properly operating and routinely serviced engine driven compressor AIR FILTER DRYER, water will never make it to a ping tank.

[Art]

X 2 on Jeff’s comment.

I plugged the ping tanks

Chuck

[Towson]

I ordered a couple of cable type pull drains to try, I was tempted to just install 1/4 brass ball valves??

[Jeff]

Have always wondered why Prevost does not install upon their air tanks “automatic moisture ejectors” (my verbiage)

Both Spartan and Freightliner use them

https://n0c357rmy1njbuit2friqwu.blob.core.windows.net/documents/xfTl94x$I0EBhB_SD-03-2501_US_008.pdf

[Archived]

I’ve used this type for years as replacements and have never had one fail. Do a search for pipe thread petcock. You may need several different size pipe threads.