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09-15-2021, 11:32 AM
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#1
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Junior Member
Join Date: Aug 2021
Posts: 29
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What is this valve for?
Hi everyone. I am trying to figure out the plumbing and water system in my 1982 empress RV. I just replaced the pump for using the fresh water tank. Does anyone know what this Valve does? There is a small grey tube that goes down into the floor but I cannot see where it goes. And I don’t see any water coming out anywhere from it or underneath the RV. Thanks for your help.
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09-15-2021, 12:03 PM
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#2
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Senior Member
Join Date: Nov 2015
Posts: 26,643
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The way the pump is installed that is the Suction Side of Pump
So if valve was Open it would suck air in
Not OEM for sure......
Could be for sucking in anti-freezer for winterizing the RV Plumbing
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I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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09-15-2021, 12:24 PM
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#3
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Junior Member
Join Date: Aug 2021
Posts: 29
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Thanks for the reply. So I am assuming that I should always keep it off when using the pump? Sorry, plumbing is not my strong suit!!
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09-15-2021, 01:06 PM
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#4
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Senior Member
Join Date: Jul 2014
Posts: 35,317
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May just be a tank drain.
It would pull air from the tank before it sucked up antifreeze.
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09-15-2021, 01:17 PM
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#5
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Senior Member
Join Date: Oct 2014
Posts: 7,867
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Certainly looks like an owner-install, and a poor one.
I would drain the tank and run a new piece of hose from tank to water pump with length of hose such that the hose meets both ends straight on instead of at any angle.
Could it drain the tank if open. Sure-- and completely soak that wood floor! DON'T DO THAT!
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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09-15-2021, 01:20 PM
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#6
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
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Well I hate to say it but it looks like the water has been leaking around this area for a long time .
Lack of clamp on the fitting and the hose being taped onto the pump, are problems .
You need a fitting like this picture to stop the leak from the pump inlet and more gear clamps to fix the leak at the fitting .
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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09-15-2021, 01:30 PM
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#7
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Junior Member
Join Date: Jan 2019
Location: Anchorage Alaska
Posts: 25
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Both of my coaches have had a drain to empty the tank and low point drains for winterizing with hose exiting the bottom of the RV . On the 91 coach I also had a similar hose to pull RV drinking water antifreeze into the system to prevent freezing. I did not like the aftertaste left by the antifreeze and switched over to a regulated air chuck. This has worked fine for me about 15 years here in Alaska, just takes time and careful maneuvering of the valves.
It does look like two clamps were left off as part of the new pump install. The suggested part upgrade might be a good idea or at least installing the two missing clamps- before the shaking on the road works the hose off.
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09-15-2021, 06:33 PM
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#8
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Junior Member
Join Date: Aug 2021
Posts: 29
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Thanks so much. Where can I can buy those fittings that are in the picture? I have taken everything out and going to redo the entire setup.
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09-15-2021, 06:42 PM
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#9
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
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Quote:
Originally Posted by amihailidis
Thanks so much. Where can I can buy those fittings that are in the picture? I have taken everything out and going to redo the entire setup.
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The fittings , I pictured , came with a replacement pump for my coach any RV parts store should have them , could be on Amazon , but I'm not sure .
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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09-15-2021, 06:52 PM
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#10
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Senior Member
Workhorse Chassis Owner
Join Date: Mar 2008
Location: Gainesville FL
Posts: 358
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Rube Goldberg would be proud of that drain! Why anyone would put what looks like a icemaker water line valve in to drain the tank is ???????? The tank would probably drain almost as quickly by evaporation
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Deputydog
2005 34' Allegro Bay W22/8.1L
Tiffin Coach Owner's Forum Member
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09-15-2021, 08:00 PM
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#11
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Senior Member
Join Date: Oct 2013
Location: Melbourne Beach, FL
Posts: 1,945
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Is it for an ice maker line to the fridge?
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2005 Newmar Essex 4502
1997 Suzuki Sidekick JX, Spokane, WA (Hoping to replace this soon)
1997 RexAir 32' Ford F53 Chassis, Banks system.
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09-15-2021, 08:13 PM
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#12
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Senior Member
Join Date: Apr 2019
Posts: 1,944
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Looks like you have some black mold on that wood from a long-time leak. Some people are real sensitive to that. You could start by spraying some bleach on it try to clean it up. You might want to read up on it, some people take a lot of precautions when cleaning it.
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09-16-2021, 10:31 AM
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#13
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Senior Member
Join Date: Nov 2015
Posts: 26,643
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Quote:
Originally Posted by TriMoot
Is it for an ice maker line to the fridge?
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That could be IF..IF it was on Discharge side of pump
Way pump is installed.....it is on suction side of pump
Maybe Pump was installed backwards????
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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09-16-2021, 11:09 AM
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#14
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jun 2016
Location: On the continental divide
Posts: 2,605
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Looks like a tank / pump drain, Others are right, in that looking at the size of the drain line it will take two weeks to drain the tank.
You already know that the black plastic tape won't hold that tube to the pump. So put a clamp on the pump and valve connections ! AND replace that valve with a bigger drain tube. And bleach the floor and paint it with "Kilz".
Report back when done.
Mike in Colorado
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2004 Fleetwood Pace Arrow 37c, 8.1 gasser, (Jezebel) Ultra RV ECM / TCM, plugs wires, and rear track bar, PPE deep Tx pan w/ temp gage, Bilstein's, Sailun's & Sumo's all round, pushed by a 2002 Grand Caravan, on a Master Tow Dolly OR a WR-250 on a rail.
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