|
|
03-20-2015, 07:19 PM
|
#1
|
Jeff
2013 Interstate Coach
Seattle
, Washington
Join Date: Apr 2013
Posts: 185
|
Ouch! black holding tank flush issue
Another flood. Like always, this morning hooked up hose to black holding tank flush, opened valve, turned on water (long hose to source), turned on macerator pump and flooded the whole front half of the interior. Just happened this a.m. Plan to check out to see if I can see what happened next week. Driving it to Portland March 30 to have the whole system checked out. Warranty runs out March 26. Local dealer notified AS in Ohio that a warranty issue is pending. A big warranty issue at that. The flood water hosed down the furnace which started to run and wouldn't shut off with the thermostat. Pulled off the exterior furnace cover and shut off with the switch. Furnace issue could be coincidence. Monday I noticed the bath exhaust fan didn't work. Fuse was good. No other problem I could find. Easy to replace I figured. When I turned off the furnace switch after the flood this morning, the bath exhaust fan turned on (both are on the same circuit). Potergeists? Anyone else with this problem?
|
|
|
03-20-2015, 07:28 PM
|
#2
|
Rivet Master
1969 25' Tradewind
Shasta Lake
, California
Join Date: Sep 2012
Posts: 1,041
|
Sounds like your in DEEP DOO DOO
|
|
|
03-20-2015, 07:32 PM
|
#3
|
Jeff
2013 Interstate Coach
Seattle
, Washington
Join Date: Apr 2013
Posts: 185
|
Good one. Just a fresh water flush. Tank was empty. Luckily not a "doo-doo" issue. The flush water was rerouted somehow before it got to the tank.
|
|
|
03-20-2015, 07:38 PM
|
#4
|
Rivet Master
1969 25' Tradewind
Shasta Lake
, California
Join Date: Sep 2012
Posts: 1,041
|
Hee,Hee I couldn't resist
Sounds like the hose from the outside flush port to the tank came loose/off.
|
|
|
03-20-2015, 07:42 PM
|
#5
|
Rivet Master
2014 25' FB International
Little Rock
, Arkansas
Join Date: Jul 2012
Posts: 594
|
First thing to check is the anti-siphon valve usually located just inside....behind the connection. There are several posts about these valves cracking/breaking and causing a flood.
Sent from my iPhone using Airstream Forums
|
|
|
03-20-2015, 08:28 PM
|
#6
|
Rivet Master
1999 34' Excella
Currently Looking...
Hillsboro
, Texas
Join Date: Feb 2013
Posts: 6,408
|
Does it drain without the flush attached?
Are you on level ground?
__________________
Peace and Blessings..
Channing
WBCCI# 30676
|
|
|
03-21-2015, 08:37 AM
|
#7
|
Rivet Master
2024 Interstate 19
Fulton
, Maryland
Join Date: May 2010
Posts: 3,882
|
Quote:
Originally Posted by Landrum
First thing to check is the anti-siphon valve usually located just inside....behind the connection. There are several posts about these valves cracking/breaking and causing a flood.
Sent from my iPhone using Airstream Forums
|
+1 on the anti-siphon valve being the cause of your flood. It's right above the water pump on the Lounge models. You can see it if you remove the lower galley drawer. It can be damaged if there is any trapped water in it and exposed to freezing temps.
- - Mike
2013 Lounge EXT on 2012 Sprinter
__________________
- - Mike
--------------------------
2024 Airstream Interstate 19e AWD
Previous: 2013 Airstream Interstate 3500 Ext Lounge
|
|
|
03-21-2015, 09:02 AM
|
#8
|
Figment of My Imagination
2012 Interstate Coach
From All Over
, More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,868
|
Quote:
Originally Posted by Boxster1971
+1 on the anti-siphon valve being the cause of your flood. It's right above the water pump on the Lounge models. You can see it if you remove the lower galley drawer. It can be damaged if there is any trapped water in it and exposed to freezing temps.
|
But isn't that the anti-siphon valve for the municipal water connection?
I thought the OP said he had hooked up to the black tank flush fitting, which is under the floor of the van and couldn't flood the interior even if its backflow preventer failed.
In order for the black tank flush to flood the van's interior, the ONLY place the leak could occur is at the black tank itself; the black tank is located right under the toilet, above floor level. EVERY other component of the blackwater system is under the floor level and cannot flood the van's interior no matter how badly those components might leak.
__________________
I thought getting old would take longer!
|
|
|
03-21-2015, 02:46 PM
|
#9
|
Rivet Master
2024 Interstate 19
Fulton
, Maryland
Join Date: May 2010
Posts: 3,882
|
Ouch! black holding tank flush issue
The black tank flush connector located in the macerator hose reel compartment feeds a water line with an anti-siphon valve to prevent back flow from the black tank. It's located under the sink in galley. The water line then runs under the floor to the black tank under toilet.
__________________
- - Mike
--------------------------
2024 Airstream Interstate 19e AWD
Previous: 2013 Airstream Interstate 3500 Ext Lounge
|
|
|
03-21-2015, 06:30 PM
|
#10
|
Rivet Master
Muskogee
, Oklahoma
Join Date: Mar 2011
Posts: 749
|
Mine did the same thing. The anti-siphon valve is a two bit piece of plastic and won't survive freezing temps. Water gets trapped in the valve and expands when it freezes breaking it. The next spring you get to find out. Worse, Airstream doesn't mention winterizing the black tank flush line so you get to find out the hard way.
The water shouldn't hurt anything after it drys out. You will have to remove and replace or just remove the valve altogether.
Welcome to the world of Airstream where every day is a surprise! And mostly, not a good one.
__________________
2011 Interstate WD/Lounge (since sold).
2020 Leisure Van WonderRTB
|
|
|
03-21-2015, 06:39 PM
|
#11
|
Rivet Master
Muskogee
, Oklahoma
Join Date: Mar 2011
Posts: 749
|
Protagonist,
The flush line makes a 90 degree turn straight up into the cab just on the other side of the hose connection, goes about 18" high, then 90 degree horizontal to the valve a couple of inches, then back down to just under the plywood floor but still above the cab floor in the insulated space between the plywood and cab floor and then another 90 degrees turn horizontal over to the tank. It's almost all inside.
Quote:
Originally Posted by Protagonist
But isn't that the anti-siphon valve for the municipal water connection?
I thought the OP said he had hooked up to the black tank flush fitting, which is under the floor of the van and couldn't flood the interior even if its backflow preventer failed.
In order for the black tank flush to flood the van's interior, the ONLY place the leak could occur is at the black tank itself; the black tank is located right under the toilet, above floor level. EVERY other component of the blackwater system is under the floor level and cannot flood the van's interior no matter how badly those components might leak.
|
__________________
2011 Interstate WD/Lounge (since sold).
2020 Leisure Van WonderRTB
|
|
|
03-21-2015, 06:59 PM
|
#12
|
Figment of My Imagination
2012 Interstate Coach
From All Over
, More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,868
|
Quote:
Originally Posted by gmillerok1
The flush line makes a 90 degree turn straight up into the cab just on the other side of the hose connection, goes about 18" high, then 90 degree horizontal to the valve a couple of inches, then back down to just under the plywood floor but still above the cab floor in the insulated space between the plywood and cab floor and then another 90 degrees turn horizontal over to the tank. It's almost all inside.
|
II stand corrected. Thank you. Learn something new every day.
Let's just hope I never get so senile that the new thing I learn every day isn't my name!
__________________
I thought getting old would take longer!
|
|
|
03-21-2015, 07:52 PM
|
#13
|
Jeff
2013 Interstate Coach
Seattle
, Washington
Join Date: Apr 2013
Posts: 185
|
Quote:
Originally Posted by gmillerok1
Mine did the same thing. The anti-siphon valve is a two bit piece of plastic and won't survive freezing temps. Water gets trapped in the valve and expands when it freezes breaking it. The next spring you get to find out. Worse, Airstream doesn't mention winterizing the black tank flush line so you get to find out the hard way.
The water shouldn't hurt anything after it drys out. You will have to remove and replace or just remove the valve altogether.
Welcome to the world of Airstream where every day is a surprise! And mostly, not a good one.
|
Do you remember any mention of the water impacting the furnace? I fired up a space heater when I got back to home base to dry out the furnace (which isn't functioning) and surrounding area. Will make another pass at it Wednesday. Also the warranty is up this week. Would the part be covered or do you know? AS has been notified a potential warranty issue is forthcoming thanks to a thoughtful service advisor.
|
|
|
03-21-2015, 09:24 PM
|
#14
|
Rivet Master
Muskogee
, Oklahoma
Join Date: Mar 2011
Posts: 749
|
It did't cause any issue with my furnace at all-but that is not to say it may not have damaged the electronics board in yours.
Hard to say about warranty issues. Airstream may claim it was caused by freeze damage and not covered at all, including collateral damage. If the claim occurred prior to the date the warranty expired and you gave them or the dealer notice before it expired and was covered it would still be covered even after the warranty period expired.
Quote:
Originally Posted by jkinglet
Do you remember any mention of the water impacting the furnace? I fired up a space heater when I got back to home base to dry out the furnace (which isn't functioning) and surrounding area. Will make another pass at it Wednesday. Also the warranty is up this week. Would the part be covered or do you know? AS has been notified a potential warranty issue is forthcoming thanks to a thoughtful service advisor.
|
__________________
2011 Interstate WD/Lounge (since sold).
2020 Leisure Van WonderRTB
|
|
|
03-21-2015, 09:28 PM
|
#15
|
Rivet Master
1999 34' Excella
Currently Looking...
Hillsboro
, Texas
Join Date: Feb 2013
Posts: 6,408
|
So.. the 'water' is coming into the unit from above the floor... not 'backing up' thru the fixtures... ahhhhhhh.
__________________
Peace and Blessings..
Channing
WBCCI# 30676
|
|
|
03-21-2015, 10:38 PM
|
#16
|
Jeff
2013 Interstate Coach
Seattle
, Washington
Join Date: Apr 2013
Posts: 185
|
Quote:
Originally Posted by cwf
So.. the 'water' is coming into the unit from above the floor... not 'backing up' thru the fixtures... ahhhhhhh.
|
Correct. Sounds like the siphon-valve hose is toast from other responses. The hose's placement would explain why water blew on to the furnace as well. Ah, RVs. Never a dull moment.
|
|
|
03-21-2015, 10:42 PM
|
#17
|
Rivet Master
Muskogee
, Oklahoma
Join Date: Mar 2011
Posts: 749
|
Actually, it is pex pipe and easy to fix. You have to remove the microwave to gain access to the area. It was not hard to repair it.
__________________
2011 Interstate WD/Lounge (since sold).
2020 Leisure Van WonderRTB
|
|
|
03-22-2015, 07:47 AM
|
#18
|
Rivet Master
2014 25' FB International
Little Rock
, Arkansas
Join Date: Jul 2012
Posts: 594
|
It's likely not the hose but the actual valve. If you use google to search Airforums for anti siphon valve you will find a few posts showing you pictures of the valve and how others have improved the valve (either removing or replacing with a higher quality valve)
Sent from my iPhone using Airstream Forums
|
|
|
03-22-2015, 12:37 PM
|
#19
|
Jeff
2013 Interstate Coach
Seattle
, Washington
Join Date: Apr 2013
Posts: 185
|
thanks
Thanks all. I'm on it. Will indeed upgrade the anti-siphon valve as well as the hose. Thanks for the search leads. Will probably consult with AS dealer just in case it is a warranty issue especially if the furnace is toast because of water damage caused by the bad valve. Cross your collective fingers.
|
|
|
03-22-2015, 08:34 PM
|
#20
|
Rivet Master
2011 Interstate Coach
Overland Park
, Kansas
Join Date: Aug 2011
Posts: 2,798
|
My check valve was installed backwards and the dealer told me that it was located on the curbside and you had to remove the plastic cubby to access it.
__________________
Glass half full or half empty to an engineer is the glass is twice as big as it needs to be.
2011 Interstate SOLD! Upfitted 2017 Transit 350. SOLD!
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|