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Old 09-02-2015, 10:11 AM   #1
Sailrguy
 
Join Date: May 2015
Location: London Ontario
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Access to tank valves

Have problems with all waste tank valves and need to access them.
Would like to lift the storage floor and access from above, rather than peel the sheathing back underneath.
Has anyone done this, or seen this done ?
Any help appreciated.
Tks
Sailrguy
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Old 09-02-2015, 10:27 AM   #2
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i have a model 3825 cardinal. please update any results you find! to me it looks like a big pain to peel back that entire underbelly sheathing without ripping or cutting it. what I would like to know is how the valves are oriented with relation to the tank. is the tank drain hole located on the side of the tank so that the valve is installed in a vertical manner at the side of the tank, or is the tank drain hole in the bottom of the tank and the valve oriented in a horizontal manner beneath the tank? please provide any updates you get. thanks
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Old 09-02-2015, 10:34 AM   #3
Sailrguy
 
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Mine is a 37rx (05)
Im guessing the valves for both grey tanks are on the tank ends.
they are pull-outs in the storage area, about 1 foot apart.
Black tank valve is set at the end of a run, close to the front wheels
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Old 09-02-2015, 10:37 AM   #4
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Hmmm
Gotta think this a bit more. You've given me food for thought
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Old 09-02-2015, 10:39 AM   #5
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Tried to get advice from FR but no response
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Old 09-02-2015, 10:48 AM   #6
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Although I don't know what unit you have ... on any unit I know of, it would be way more trouble to remove the flooring than go at it from the belly pan. The valves are right down against the belly pan anyways. The valves are horizontal near the bottom of the tank exiting out the side. No holding tank I'm familiar with has the drain port coming out the bottom ... fresh water tanks are in the bottom. On my Silverback ... the black tank is in front and has the 3" drain port street side on the front of the tank. The grey tank is to the rear of the black tank and has the 1.5" drain port street side on the rear of the tank. Most any dealer tech jut cuts the belly pan material, does what needs done, and tapes the flap back up or screws a patch over the area. If the valve is simply leaking, you don't ahve to glue a new assembly in ... just remove 4 screws and change out the blade assembly. Flush tank very well before you start work!!
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Old 09-02-2015, 01:11 PM   #7
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Sailrguy...not sure what kind of problem you are having, but on my Cardinal 32, the black tank is not draining when I pull the valve open. Tried putting back water pressure on the tank, but nothing happened. Need to access the tank from underneath this Labor Day weekend by cutting the sheet metal underneath and removing the insulation to check that the valve is functioning correctly. If it is, then I somehow have to unclog the tank train with a snake.
Dieselguy - thanks for you response, I found that helpful.
C/S 5th - DCC, USN, Ret
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Old 09-02-2015, 02:03 PM   #8
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Colorado S ... assuming your valve is operating as it should ... I might put forth this info. Never sit on a full hookup site with your black tank drain valve open. You will defintely build the dreaded pyramid as all the liquids will flow on out and not help break down the solids. You will get used to telling when it's time to open the valve, then close it up till the next time.
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Old 09-02-2015, 02:29 PM   #9
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tanks underbelly

Quote:
Originally Posted by 4Sailrguy View Post
Tried to get advice from FR but no response
At the 2015 rally the techs had an expensive roll pf 3m tape, he cleaned the area and taped it back closed. Looked good to me.
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Old 09-02-2015, 03:45 PM   #10
Sailrguy
 
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Thanks to one and all for feedback. Truly appreciated.
Looks like underbelly sheathing comes off regardless.
Will report back with pics when done and maybe help others to do the same.
Thanks again
Sailrguy
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