Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-15-2015, 11:01 AM   #15
Rivet Master
 
jdalrymple's Avatar
 
2009 27' FB Flying Cloud
1991 35' Airstream 350
Jay , Oklahoma
Join Date: Oct 2006
Posts: 1,602
The theory is sound. As mentioned above, several rigs came this way. Our '91 350LE MH is so equipped.

The only problem I see is perhaps in the SeeLevel system.

I expect the signal from the 3/4 or full sensor on the tank is not a simple 12 volts.

It is probably some very low level voltage, more like microvolts, or to be more technical "logic" level signal.


The rub will be converting this logic signal to something useful and able to switch your valve on and off.

Transistors, resistors, and diodes kind of stuff.

Even if the sensors were a full 12 volt simple on/off signal, one would need a relay to turn off the valve after the manual turn on is switch activated.

A sperate level sensor for pump turn off, not part of the SeeLevel system might be easier to deal with.



Certainly not impossible, but a some knowledge and a trip to a well stocked Radioshack store would be required.


Regards,

JD
__________________

__________________
Jeff & Cindy
'09 27FB Flying Cloud
'91 350 LE MH
jdalrymple is offline   Reply With Quote
Old 01-15-2015, 11:18 AM   #16
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
Trekerboy,

Here's how I would do it, but only if I wanted it really bad.

Put two "T"s in the water line one coming from the tank to the pump, and one on the output of the pump. The pump acts as a check valve between the system and the tank, so install the valve in parallel with the pump....in the on position, water will flow around the pump and into the tank, and in the off position, it will not.

Then install a switch to send power to the pump thru a self energizing relay, single pole, double throw. Then on the ground side of the pump, route the ground thru the relay, normally closed side, with the center pole of the relay to an additional sensor you install in the top of the tank. When the water touches this sensor, it will then be ground, and have that signal interrupt the self energizing part of the relay, turning off the valve.

Now, the way I would really do it if I wanted such a system....I would install a manual valve in the same way, parallel with the pump, but route the lines so that I could mount the valve in a convenient to access location. To turn on the flow the tank, open the valve till water runs out the filler door, then close the valve.

Good luck.
__________________

__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 01-15-2015, 11:57 AM   #17
4 Rivet Member
 
trekerboy's Avatar
 
1979 31' Excella 500
Charlevoix , Michigan
Join Date: Aug 2014
Posts: 318
Thank you everyone for your input; there are some great solutions here!

I've decided to go the manual route instead of trying to turn off the valve automatically when the tank is full. Since I'm not an Electrical Engineer I'd be in a tough spot if the fully automatic solution broke down while I was one the road. Keep it simple (stupid) right?

Thanks again everyone for pointing me in the right direction!
__________________

__________________
trekerboy 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
Any clever storage tips? No. 13 2009-2015 Flying Cloud 18 07-03-2012 02:24 PM
Suburban furnace solenoid valve batt LP Gas, Piping, Tanks & Regulators 1 04-05-2012 12:46 PM
Battery, Solenoid, Isolator Setup kennytheecat Electrical - Systems, Generators, Batteries & Solar 4 04-23-2009 09:45 PM
Fresh water tank fills when hook up to city water Jonah On The Road... 17 09-24-2008 02:23 PM
Clever Craft Silver Threads Vintage Kin 7 02-27-2007 03:25 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:01 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.