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Old 05-23-2002, 04:53 PM   #1
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Join Date: May 2002
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Question Holding Tank Wiring

Does anyone know how to test the contacts in my holding tanks?
My gauge reads 1/4 @ 5 gallons and 3/4 at full. Is this just an adjustment at the gauge? There is a screw head in the panel front to fiddle with the gauge. I do not have the wiring diagram or the repair manual.

I also just replaced the old thetford (no parts available) valves and installed valterra. And the new pergo floor I just installed looks great. Only took about four hours.
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Old 05-23-2002, 05:22 PM   #2
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1986 25' Sovereign
Southern Middle , Tennessee
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The service manual with my '77 says to fill the tank all the way up, press the rocker switch to indicate level and then use a small, thin screwdrive through the hole provided in the control panel to move the needle to full. I'm not sure if this procedure works with yours but it seems feasible. I would want to know if the thing was working toward full more than empty. Also be aware that battery voltage/strength affects the settings. I have flushed my grey and black water tanks within the last several weeks and will be adding probe cleaner the middle of next month in preparation for a June 28-30 outing.

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