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Topic: Fresh water fill valve leaking through [was Shower repair in Tucson Az] (Read 1914 times) previous topic - next topic

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #25 –
I spent a lot of time on Amazon looking at solenoid valves. Most are not rated constant duty, which I want even though I don't plan to leave it energized long periods of time.

Travelin' Man sent me a link that looks like what I want.

Stainless Steel: 3/4" Inch 12V DC Stainless Steel Solenoid Valve - SS 12 Volts DC
Brass: 3/4'' 12V DC Electric Brass Solenoid Valve 24-Volts 

One way flow so won't back feed to water pump.

Duty Cycle
100% but not indefinitely

2.65" length, versus now approx 4.5 to 4.75.  Trip to hardware store would make the length up with additional piping.
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #26 –
I just replaced mine with a ball valve and left the panel hiding it off.  Now I can see the tank level and it's on door side of coach. I like it (KISS) and haven't changed back.

2000 GV320 4010 build #5712  2019-?
1999 Bounder 2000-2008
Bardstown, KY
🥃The Bourbon Capital of the World🥃

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #27 –
Dan,

Check the spare parts we gave you.  Steve thinks he might have left you the old (original) fill valve after he cleaned it. (I just mentioned your recent repairs to him)
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #28 –
Quote from: Michelle –
Dan,

Check the spare parts we gave you.  Steve thinks he might have left you the old (original) fill valve after he cleaned it. (I just mentioned your recent repairs to him)
Thanks!  The box of parts is buried deep in a storage compartment, but I will take a look 
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #29 –
Quote from: Michelle –
Dan,

Check the spare parts we gave you.  Steve thinks he might have left you the old (original) fill valve after he cleaned it. (I just mentioned your recent repairs to him)


Pulled the box out. Lot's of goodies in there, but no fill valve.

I screwed down the manual cut off and still seeping through, couple of gallons per hour.
 I'll plan on replacing. I have a email into Spartan inquiring with them. Edit: no response from Spartan.

Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #30 –
Solution on my coach to water fill valve in closed position slowly filling tank.

First, on the old fill valve, cranking down the manual shut off valve a bit more firmly than previously did stop the leak through.

Ordered this valve at recommendaton of Travlin' Man: 3/4'' 12V DC Electric Brass Solenoid Valve 24-Volts

In pics, you can see I had to add 2" to the length of the new valve to reach the PEX fittings.

The 2 fittings equalled 2" once threaded down.

Ace Hardware: 4017491 Hex Nipple 1/2" brass, 4017339 Coupler 1/2" FPT brass



Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #31 –
Looks good Dan! Sure hope you left at least two threads free of the Teflon tape on the male threads! If not, bad things can happen.
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #32 –
Quote from: rbark –
Looks good Dan! Sure hope you left at least two threads free of the Teflon tape on the male threads! If not, bad things can happen.

More like one thread away from the end. I was more careful on the input side than the exit side, being aware I wanted no tape threads into the valve.

The two 3/4 inch fittings threaded into the water fill valve (closest to the actual valve)  have a drop of water appearing about one per 5 minutes on the input side and one per 2 minutes on the output side (only when filling the tank on the output side).

 I had at least 2 - 3 layers of teflon tape about 3 threads down from the ends, and wrenched the fittings very tight.

 I don't want to keep pulling it  for re-work as the female  input side of the 1/2" attached to the PEX keeps wanting to cross thread when starting it (no teflon tape on  those connections). Takes multiple careful tries to get it correctly threaded and avoid cross threading. 

I'll pull it one more time, remove the teflon tape from those two fittings, and use plumbers "dope" thread sealer instead.  Anyone advise that is correct or advise otherwise?



Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #33 –
Quote from: AC7880 –

 I had at least 2 - 3 layers of teflon tape about 3 threads down from the ends, and wrenched the fittings very tight.


Many moons ago, I was taught that teflon tape should not be wrapped more than a bit of overlap, not multiple wraps.  Granted, we were dealing with vacuum and purified gas systems, not water, but I believe the same guidance applies.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #34 –
I agree with Michelle. Pipe dope is also a good option.
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #35 –
Pipe dope and don't over tighten the fittings as it's very easy to split brass.
88 Grand Villa 36' ORED 3208 (throwaway)Cat.
 Build # 3150
Happiness is the maximum agreement of reality and desire.
 

Re: Fresh water fill valve leaking through [was Shower repair in Tucson Az]

Reply #36 –

Update on solving the fresh water tank slowly filling when not selected (when connected to shore water):

First, the old fill valve was indeed defective, even after complete disassembly and cleaning. I can blow air through it when it is supposedly closed. I already posted the solution for that above.

Second, the water pump was ALSO back feeding into the fesh water tank when on shore water. I have the Pentair Shurflo 4008-101-E85. The 4008-101-A85 is identical but sold to RV builders, while E model sold to consumers.

I dissasembled the upper housing which looks like this: Amazon.com: SHURFLO 94-800-00 Model 4008 Complete Upper Housing : Automotive 
8 screws removed, then the 3 screws on the lower left.  Pay close attention when taking the cover(s) off of what goes where.  I expected some debris or corrosion with the check valve, but none found.  Cleaned anyway, re-assembled and now no water pass though to fresh tank (so far)

I plan to get a spare check valve, either inside the pump, or inline on the water line (suction or pressure side).

The 4008 pump check valve has changed over the years.  Ordering only the check valve will not work unles your pump is build date newer than approx 2020 according to many reviews.  So it will not work for me. Check valve: Amazon.com: SHURFLO 94-800-03 Model 4008 Repair Parts - Check Valve : Automotive

Instead, the complete upper housing must be purchsaed, and it includes the new design check valve, and includes the pressure switch.  Amazon.com: SHURFLO 94-800-00 Model 4008 Complete Upper Housing : Automotive

Shurflo sells a inline check valve, but it is plastic and several reviewers say it failed and spewed water.  Amazon.com: SHURFLO 340-001 in-Line Check Valve : Tools & Home Improvement

If I go the external check valve route I will buy a metal one way check valve, 1/2" barbs, with clamps.

Other option, buy entire new 4008 pump, approx $65 - $75 on line by shopping around, then keep old one for spare parts.  A new one "should" have the new design check valve.

So far the  probelm is solved, but I expect the water pump check valve to hang up again in the future.

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Dan - Full timing since 2009
2003 U320 40' Tag 2 slide