Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-22-2010, 06:03 PM   #1
1 Rivet Member
 
1975 29' Ambassador
Mustang , Oklahoma
Join Date: May 2010
Posts: 16
Where is the fresh water drain plug located?

We have a 75 Ambassador and I need to flush the fresh water tank...can't find the drain plug and the manual is no help either.

Anyone know the answer to this simple question? I have crawled around underneath it and looked at diagrams for 2 hours now...no can do!

Need an expert!

Bambid
__________________

__________________
bambid is offline   Reply With Quote
Old 06-22-2010, 06:13 PM   #2
Rivet Master
Commercial Member
 
Dan@LED4RV's Avatar
 
Currently Looking...
Denton , North Carolina
Join Date: Jul 2006
Posts: 695
Bambid,
If your unit was made in late 75 it may not have a drain plug. And after your spending so much time under the unit I'm thinking you don't have one. Flushing it via the water pump is the way to do it.
__________________

__________________
Dan Brown
Denton NC
Dan@LED4RV is offline   Reply With Quote
Old 06-22-2010, 06:21 PM   #3
Rivet Master
 
Lumatic's Avatar

 
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia , New Mexico
Join Date: Feb 2005
Posts: 6,642
Images: 16
Blog Entries: 1
There should be an in line low point drain valve
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
Lumatic is offline   Reply With Quote
Old 06-22-2010, 06:59 PM   #4
Maniacal Engineer
 
barts's Avatar
 
1971 25' Tradewind
Menlo Park , California
Join Date: Jan 2010
Posts: 1,223
Images: 1
Blog Entries: 4
There's usually an access point in the sink cabinet... there will be drain valves for the plumbing, and a recessed area where the pipes (fill, suction, drain vent, etc) come off the tank. The drain valve (if present) will be right near there, possibly on the same line that goes to the water pump suction.

- Bart
__________________
Bart Smaalders
Menlo Park, CA
http://tinpickle.blogspot.com
http://smaalders.net/barts
barts is offline   Reply With Quote
Old 06-22-2010, 09:08 PM   #5
Rivet Master
 
maccamper's Avatar

 
1974 29' Ambassador
1966 20' Globetrotter
Central , Illinois
Join Date: Mar 2007
Posts: 664
Images: 4
drain valve

On our '74, there is a gate valve in a recess in the floor under the kitchen sink cabinet. It is way down there under the water pump lines, and has a round, red handle that looks like it belongs on an outdoor faucet.

You open the valve by turning counterclockwise as you are looking down at the valve. Underneath the trailer there is a small tube that the water drains out from. It takes a very long time to drain the tank. Good luck.

Laird
__________________
maccamper is offline   Reply With Quote
Old 06-22-2010, 09:40 PM   #6
Maniacal Engineer
 
barts's Avatar
 
1971 25' Tradewind
Menlo Park , California
Join Date: Jan 2010
Posts: 1,223
Images: 1
Blog Entries: 4
Quote:
Originally Posted by maccamper View Post
It takes a very long time to drain the tank.
Open the pressure side drain valve and turn on the water pump; it will drain in 50 gals/3 gpm = 17 minutes or so.

- Bart
__________________
Bart Smaalders
Menlo Park, CA
http://tinpickle.blogspot.com
http://smaalders.net/barts
barts is offline   Reply With Quote
Old 06-22-2010, 11:14 PM   #7
3 Rivet Member
 
1977 31' Excella 500
plano , Texas
Join Date: May 2006
Posts: 128
If you have a ShurFlow and a drain line that is lower than the tank, it will actually siphon from the tank through the pump and out. With that being said, run the pump for 17 min otherwise it will be 60 min of siphon.

-thomas
__________________
tschat is offline   Reply With Quote
Old 06-22-2010, 11:25 PM   #8
Rivet Master
 
Mexray's Avatar
 
1978 28' Ambassador
Morada , California
Join Date: Jan 2006
Posts: 1,583
Do you have a small, square 'plate' held with four screws on the underside of the sheetmetal 'pan' that protects the fresh water tank? If so, when the plate is removed, you'll see a recessed pipe plug that can be removed to drain the tank - our 78 is drained in that manner...a real PITA!

Ray
__________________
Ray & Pat; Morada, CA
Mexray is offline   Reply With Quote
Old 06-23-2010, 08:43 AM   #9
1 Rivet Member
 
1975 29' Ambassador
Mustang , Oklahoma
Join Date: May 2010
Posts: 16
I took "barts" advice (above) and it worked perfectly! Thank you for so many replies!

Has anyone ever had to wash/rinse wash/rinse out smelly sour greenish yellow water and odor from their fresh water tank? If so, what did you use to get it done right?

Bambid
__________________
bambid is offline   Reply With Quote
Old 06-23-2010, 09:52 AM   #10
Rivet Master
 
Ganglin's Avatar
 
1971 27' Overlander
Central , Ohio
Join Date: Jun 2006
Posts: 2,365
Images: 13
People use different procedures of course but this is one you will find often:

The procedure for sanitizing is as follows:
1. Multiply gallons of tank capacity by 0.13 (liters of tank capacity by 1.0); the result is the ounces (milliliters) of bleach needed to sanitize the tank.
2. Mix into solution the proper amount of bleach within a container of water.
3. Disconnect from city water and pour the solution into the fresh water tank (using a funnel with a flexible hose attached) and fill the tank with potable water. Note: wear old clothes as bleach has a tendency to ruin new clothing.
4. Open all faucets (hot and cold - including the exterior shower) allowing the water to run until the distinct odor of chlorine is detected. Close the faucets and allow the solution to remain in the pipes.
5. The standard solution must have four (4) hours of contact time to disinfect completely. Doubling the solution concentration allows for contact time of one (1) hour.
6. When the contact time is completed, drain the tank. Refill with potable water and purge the plumbing of all sanitizing solution by opening all faucets until you do not detect the smell of chlorine.

This procedure is approved by RVIA ANSI A119.2 and the U.S. Public Health Service and by Jim Twamley, Professor of RVing.


On ours, the first time I cleaned it, we added two more steps. I poured 4 or 5 gallons of white vinegar in the tank then filled it with water and let it sit for a day. Then the procedure above. Then disolved a box of baking soda in hot water and added that, with a full tank, and let that sit overnight.
Now we just do the above at the beginning of each season....
__________________
Ganglin is offline   Reply With Quote
Old 06-24-2010, 09:47 PM   #11
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
If feasible, driving around with the cleaning agent in an almost full tank will increase the rinse action of whatever fluid you use in the tank.

I'm not sure, but I don't think that the fact that it's sanitized necessarily means that all foreign matter has been removed.
__________________

__________________
“Courage is being scared to death, but saddling up anyway.”
...John Wayne...........................
Aage is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fresh water drain plug sticks skipj Fresh Water Systems 16 11-06-2009 07:43 PM
Tool to remove fresh water drain plug willbrackman Fresh Water Systems 5 06-19-2009 11:44 PM
Bowen B10G water heater drain plug lebolewis Furnaces, Heaters, Fireplaces & Air Conditioning 3 09-20-2008 12:49 PM
Needed, drain plug for hot water tank! wacnstac Fresh Water Systems 8 10-16-2007 09:22 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:01 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.