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General Discussion of preventative/corrective maintenance and other technical issues regarding your coach that are not covered in other Mechanic's Corner categories (ex. refrigerators, water heaters, and compressors).

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  #1  
Old 10-12-2009
ERay ERay is offline
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Default Dupree manual waste dump valve; lube & seal renewal.

I replaced both of my valves last year and now they are wanting to stick... I was thinking about taking them out... clean them and coat them a coat of vasaline... but then I think I read somewhere that was not to be done... did I read it wrong or in my old age is my memory failing... how do yall maintain them?

Thanks in advance for any info
er
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Old 10-12-2009
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Clean them up and use silicone spray.
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  #3  
Old 10-12-2009
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use sillycone spray on the shafts and sillycone grease or some other Non petroleum based grease and the paddles
the sticking you experience is the rubber sealing in the valve body
use the handle to unseat the valves
unlock the valve then turn the handle 1/2 a turn while pushing gently on the handle there are ramps under the handle and that should lift to valve so you can open it easily
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Old 10-14-2009
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could someone give me a brand name of a silicon spray for these valves... I went to Home Depot on my lunch hour and they didnt have any... all the lubraicants I looked at had petrolem in them

thanks
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  #5  
Old 10-14-2009
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Default Ace it the Place

Ace Hardware, Pure Silicone Lubricant. 11 oz. Spray can. Great stuff.
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  #6  
Old 10-14-2009
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Try to locate CRC heavy duty silicone spray.
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Old 10-14-2009
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thanks to all
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  #8  
Old 11-01-2010
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Default Lubricating dump valves

Just wondering how other LX owners lubricate the black/gray water dump valves. My valves are the Dupree products manually operated plastic knive valves. You rotate the plunger handle 1/4 turn and then pull it out to open the valve, push it in and turn it to lock it closed.

The black water dump valve won't close all the way, and I think it just needs lubricating. Do I need to take these apart? What's good for lubricating these, silicone?

Thanks all...
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Old 11-01-2010
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If your black valve is not closing all the way it could be that you have debris in the valley of the gate. Dump, flush, and remove the paddle and stick a extra long screwdriver down and scrape the valley to make sure nothing has settled there before you closed the valve.
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Old 11-01-2010
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Yup, silicone is the stuff. The handle and paddle assembly pulls out after the two screws are removed. Dump first. Take a hose and flush out the seat with the hose on strong spray. Look for pieces of paper, etc in the groove. The paddles can be replaced if the rubber gets hard or damaged.

Stephen Birtles has them.
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