BAC Forum

General Boards => Technical Support => Topic started by: Fred Cook on November 10, 2017, 12:35:12 PM

Title: Draining water from air tanks.
Post by: Fred Cook on November 10, 2017, 12:35:12 PM
On my older coach I had to periodically open up a T-valve on the air tanks to drain accumulated water produced by the air dryer. Do l also need to do that with my 2002 Beaver? I ask because I cannot find a drain valve anywhere.
Title: Re: Draining water from air tanks.
Post by: William Jordan on November 10, 2017, 05:08:31 PM
The air dryer voids the water from the system before it gets to the tank. that pssst! Sound you hear is it doing that. If the dryer does it’s job and has been serviced properly there won’t be any water in the air tanks to drain. That said the tanks should have a cord to the valve or a valve to drain on each tank.
Upon looking , you can tell I haven’t drained them , they are connected to blue tubing and a solenoid / valve. That runs to purge valve manifold  under the batteries
Title: Re: Draining water from air tanks.
Post by: Bill Lampkin on November 10, 2017, 06:35:48 PM
On our 2005 Patriot, the drain valves are all on a panel inside the right rear (battery, fuel filter, muffler) compartment.
Title: Re: Draining water from air tanks.
Post by: Joel Ashley on November 10, 2017, 10:22:15 PM
As the previous posters note, you either have cords running to the valves on the tanks, or like Bill Lampkin's and ours (see photo below) the 4
valves are on a plate in the battery bay or somewhere.  Perhaps someone with your exact model coach will speak up with guidance to any pull-cord terminus.

-Joel
Title: Re: Draining water from air tanks.
Post by: Fred Cook on November 11, 2017, 03:15:43 AM
Thanks everyone, I am learning something every day. Will check it out the battery bay in the morning.
Title: Re: Draining water from air tanks.
Post by: Fred Cook on November 11, 2017, 04:54:25 PM
As the previous posters note, you either have cords running to the valves on the tanks, or like Bill Lampkin's and ours (see photo below) the 4
valves are on a plate in the battery bay or somewhere.  Perhaps someone with your exact model coach will speak up with guidance to any pull-cord terminus.

-Joel

Joel.... I found the four valves you indicated and sent a photo of.  Am I suppose to open all these valves up and water will be purged?  Thanks!
Title: Re: Draining water from air tanks.
Post by: Joel Ashley on November 11, 2017, 08:12:27 PM
Yes, Fred, with the engine off open them one at a time and exhaust the tank air.  Each tank has two sides to it, thus two valves each.  If you note any moisture in that air, such as mist or condensate on the tips of the nozzles, consider having the air dryer serviced.

Joel
Title: Re: Draining water from air tanks.
Post by: Fred Cook on November 11, 2017, 10:43:00 PM
Joel.... Did it and noticed no mist.  Thanks for the help!