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Old 11-18-2018, 04:16 PM   #1
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Brand: DRV
Model: 39TKSB3 "Modified"
State: South Dakota
Posts: 1,557
THOR #1661
Dump Valves How "I" Like Them!

Sick and tired of the cable valves that simply are designed to fail!

I replaced the Black Tank Valve with a standard "T" handle Valterra unit. Only negative was I had to open the basement and remove a couple storage bins to open and close the valve every time I flushed the tank.

Then recently the grey tank valve stopped closing. So on the down stream side of the box under the RV I added 3" and 1.5" valves. That worked fine until I closed the new 1.5" valve for a couple days and discovered the cable valve I left open was leaking, GRRRR.

So I decided to eliminate the 1.5" valve and cut a access hole in the bottom of the plastic box. Then decided to simply replace the valve and have it MUCH more accessible than the one I had installed.

I eye balled where the blade/handle housing would exit the plastic pan and cut a hole and slid the new valve it. It's VERY easy to access along with the 3" valve now. I just leave the two extra valves open now. I used an Utility Knife with sharp blade.

As you can see the JackHoles ran the Gas Pipe right over the box's fasteners that is why I cut the access hole. Actually glad I did. I used 1.5" x .75" strips of plywood for backing to patch the hole. Used Permatex "The Right Stuff" for sealant.

First fix below in first pic.

I turned the 1.5" valve horizontal and leave it open, easier than patching back the ABS and eliminating it.






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Old 11-18-2018, 04:42 PM   #2
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State: Texas
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THOR #3109
Ron,
Thanks for all the pics. Reason why I hadn't eliminated the black tank cable was exactly why you did not like moving stuff/opening door to pull valve.
There may be some refinements on your solutions, but not seeing them yet. Will have to address this problem at some point. Electric valves where you put the new ones?
If I ever sit long enough to take it all apart, might just redo the whole drain setup coming out of the tanks.
If I remember correctly, no way to take the plastic box off as they glued the lines in after the box was placed?
Joe
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Old 11-18-2018, 05:02 PM   #3
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THOR #8860
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Old 11-18-2018, 05:06 PM   #4
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Brand: DRV
Model: 39TKSB3 "Modified"
State: South Dakota
Posts: 1,557
THOR #1661
Yes the lines need to be cut to remove the plastic pan. I am happy now as both are easy to access.

Wish I had done this in the first place but you know how that goes!

Not a fan of electric valves, something to go wrong. Same reason we chose the standard nice elongated toilet.
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Old 11-19-2018, 12:51 PM   #5
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Brand: DRV
Model: 41RSSB4
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THOR #5859
I guess you will have to totally avoid freezing weather though.
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Old 11-19-2018, 03:26 PM   #6
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Brand: DRV
Model: 39TKSB3 "Modified"
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THOR #1661
Quote:
Originally Posted by Fulltimer50 View Post
I guess you will have to totally avoid freezing weather though.
Why? The 1.5" valve is inside the box with a heat pad on it with insulation under it. The 3" valve is right outside of the insulated box and the 3" pipe also has a heating pad.

"IF" I am ever in freezing weather again and I am the least bit concerned I can use the 3" manual valve I installed in lieu of the 3" cable valve a couple years ago.

I should never say "NEVER" but it will be a cold day in HE!! that it will be a concern to me.

But hey info is good!!!
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