Reply
 
Thread Tools Display Modes
 
Old 11-02-2015, 08:46 PM   #11
Bus Nut
 
2kool4skool's Avatar
 
Join Date: Oct 2015
Location: Spring Valley AZ
Posts: 782
Year: 2000
Coachwork: Bluebird
Engine: 5.9 Cummins
Rated Cap: 2 elderly children, 1 cat
Nat, FROM a bucket not to a bucket.
__________________
Don and Mary
2kool4skool is offline   Reply With Quote
Old 11-02-2015, 09:30 PM   #12
Bus Nut
 
charles_m's Avatar
 
Join Date: Sep 2013
Location: Denver
Posts: 489
Year: 1982
Coachwork: Blue Bird
Chassis: International S1800
Engine: DT466 Trans: MT643
Rated Cap: 65
Thanks all for the replies and help!
The screen at the pump intake is clear and the line from the tank is already a reinforced--it is this product and doesn't seem to be collapsing under the suction--at least from a visible/tactile inspection. It is made by the manufacturer of the pump, too, so hopefully they knew what they were doing...

I still think the problem is between the tank and the pump, though, and I'll be taking the lines off and pumping out of a bucket once I get a chance to see if that improves things vs pumping from the bottom of the tank,

http://www.amazon.com/SHURFLO-94-591...N8QMWYS6XAB62R

The pump is supposed to be able to dry prime up 6' and the way I have it mounted, it is at the same level as the tank. The pressure is low, even if the water level is above the level of the tank.

At this point, the most probable cause to me, would be some kind of air leak on the pump intake or a hose that is collapsing. Once the tank is empty, I'll toy with different hoses and a bucket of water to see if that helps. Like I said, I already replaced the pump and I have checked in the tank for obstructions. It's always been this way and I am pretty sure that the pump is getting to 55 psi when the faucets are off, but once a faucet is open, it can't keep up. If I turn on the water in the bathroom, the kitchen sick doesn't even work.

It's just hard for me to imagine why it would be having such a hard time sucking water from the tank unless there was a pinhole vacuum leak in the intake line or an obstruction like a collapsed hose. All my fittings are 1/2" minimum between the tank port and pump.
Maybe I'll try and blow out the line between the tank and pump as well....

Thanks again for the ideas, guys!
__________________
Patina enthusiast and professional busman
www.bustoshow.org
Blog: www.lookatthatbus.com
Instragram: @lookatthatbus
charles_m is offline   Reply With Quote
Old 11-02-2015, 09:37 PM   #13
Bus Crazy
 
Join Date: Feb 2012
Location: Salt Lake City Utah
Posts: 1,328
Year: 2000
Chassis: Blue Bird
Engine: ISC 8.3
One other thought: is water drawn from the tank through a bung low on the tank, or through some kind of dip tube? If a dip tube, is it cut square on the end, and perhaps long enough that it is very close to the floor of the tank...? It could be nearly sealing itself to the tank floor.
family wagon is offline   Reply With Quote
Old 11-02-2015, 10:36 PM   #14
Bus Nut
 
Join Date: Oct 2011
Location: Snowflake, Arizona
Posts: 323
Year: 1996
Coachwork: Blue Bird
Chassis: All American Rear Engine
Engine: C-8.3-300 Cummins MD3060
Rated Cap: 40 Prisoners
Is there the possibility the wiring is reversed making pump run backwards.
Dragonpop is offline   Reply With Quote
Old 11-02-2015, 11:11 PM   #15
Bus Crazy
 
roach711's Avatar
 
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,572
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
Is there a good air vent on the water tank?
roach711 is offline   Reply With Quote
Old 11-03-2015, 01:24 AM   #16
Bus Nut
 
charles_m's Avatar
 
Join Date: Sep 2013
Location: Denver
Posts: 489
Year: 1982
Coachwork: Blue Bird
Chassis: International S1800
Engine: DT466 Trans: MT643
Rated Cap: 65
Thanks for the ideas!

The outlet is a bung on the bottom of the tank, not a pickup tube.

Unless red means negative, the pump is wired properly ;)

The tank has a 3/8" vent port that is working properly--I can fill with a garden hose full blast with no issues.

I will check the voltage drop, and intake line from the tank to the pump tomorrow when I get back to the bus, sleeping at the old lady's place tonight
charles_m is offline   Reply With Quote
Old 11-03-2015, 02:04 PM   #17
Site Team
 
crazycal's Avatar
 
Join Date: Feb 2007
Posts: 4,087
I think you have a mouse wedged into one of your tubes.
__________________
I'm hungry!

You Gotta Let Me Fly
crazycal is offline   Reply With Quote
Old 11-03-2015, 09:39 PM   #18
Bus Crazy
 
roach711's Avatar
 
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,572
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
Stupid mouse!
roach711 is offline   Reply With Quote
Old 11-08-2015, 11:04 PM   #19
Bus Nut
 
charles_m's Avatar
 
Join Date: Sep 2013
Location: Denver
Posts: 489
Year: 1982
Coachwork: Blue Bird
Chassis: International S1800
Engine: DT466 Trans: MT643
Rated Cap: 65
Looks like there was, after all, a mouse living inside the line from tank to pump....

ok, it was just a whole little nest of polyethelyne shavings from, I suspect, when the holes were drilled into the tank for the bung fittings.

Now my water pressure is awesome and I have a new problem--My water tank lasts half as long as it used to!

Thanks guys
__________________
Patina enthusiast and professional busman
www.bustoshow.org
Blog: www.lookatthatbus.com
Instragram: @lookatthatbus
charles_m is offline   Reply With Quote
Old 11-08-2015, 11:18 PM   #20
Bus Crazy
 
roach711's Avatar
 
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,572
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
Glad it was something cheap, if not easy to fix.
roach711 is offline   Reply With Quote
Reply

Thread Tools
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


» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 07:22 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.