Grey water tank valve on my dads TT was stuck. I told him to pour a little veggie oil down the drain and it worked some. It will now open about 1/2 way. Any other tricks we could try?
The valve works as a metal plate slides back and forth to open and close the valve....if you can get to the housing that when the valve opens it goes into...drill a small (1/8) hole in the middle of the plate...screw in a grease zerk...shoot grease into the cavity as it will keep it working smooth for long time...
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