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Old 04-21-2010, 08:41 PM   #15
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Originally Posted by dsafian View Post
Thanks a bunch Mike.

The toilet does not hold water, but we are not interested in using it.
Eventually, we'll remove the black water tank & toilet. For now, I just want to
get it cleared out. I will probably just fill the toilet with expandable foam to seal it, as I've been told that the toilets cannot be repaired and need to be replaced.

tx again.
david
Get a second opinion on repairing the toilet. Not only can it be repaired you may be able to do it while it is in the trailer. When toilets don't hold water the knife blade is often held from closing by by paper that has been pushed into the seal. If you take a heavy coat hanger and cut it so you have a long shaft about 15 in long and bend a 1/2 right angle piece at one end and a 3 or 4 in bend at the other. Now while holding the valve open work the short bend end in and around the seal to dislodge any paper that may be holding the valve from closing.

Onc you have the seal made to the point the toilet will hold water your smell problem should be solved.
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Old 04-21-2010, 09:26 PM   #16
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A "Flush King" from Camping World allows you to back flush the black tank and works better than the wand but also more expensive.

I think WalMart carries a clear short section of 3" drain (in the camping section) that has a place to connect a garden house you could use this to force water into the tank backwards same principle as a Flush King without the second valve.

I say flushing backwards as you could have a clump of paper at the exit of the tank preventing any solid flow. Pushing this back into the tank might allow it to slide thru with enough water.

A less expensive and crappy solution is to shove a hose into the tank from the outside with the water on to break-up whatever might be blocking the drain inside the tank.
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Old 04-22-2010, 12:07 AM   #17
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All great suggestions - I'm on my way to the trailer tomorrow, will update you next week!!
thank you.
-david
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Old 04-22-2010, 08:17 AM   #18
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Sorry to rain on the parade but a Flush King is designed to seal a pipe and build pressure against a blockage in that pipe. The assumption is that the pipe is COMPLETELY blocked thus allowing the King to build the static pressure in the pipe equal to the city pressure. If there is any passage of water through the pipe before using the King it will never build pressure and only flow water back into the tank. The likelihood that this flow of water will dislodge anything is the same as having filled the tank as normal and then draining.

To use water pressure in the absence of a complete blockage you need to be able direct the waters kinetic pressure directly at the blockage.

Take some 1/2 in copper pipe and adapt it to a hose. Solder an elbow on the end and solder just enough 1/2 in pipe into the elbow that you can get the pipe down through the toilet. Smash the end of that short piece of pipe, at a slight angle to the bottom of the tank, to create a fan spray. Now insert the wand and start spraying.

This is the same principle as the commercially available wands but with a higher volume of water being used.
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Old 04-22-2010, 09:23 AM   #19
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The "flush king" or cheap walmart one.
I would not use. Looking at the plumbing in our 71 the stream of water will not go into the black tank but up the gray water drain. With no Gray water tank or valve you will just fill up the bath tub. This is just the way it is on ours, look at yours and see if the stream will go in your tank (ours will not). Our waste lines are in the rear bumper compartment and I can plainly see it would be of no help to us to use the "in line back flush device" untill we get a gray water holding tank. You may have different plumbing.
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Old 04-23-2010, 12:16 AM   #20
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There's no blockage in the line, I think the crud is at the mouth of the tank inside just keeping the majority of the solid stuck. If I put liquid in, it flows out, it just will not drain completely. I'm gonna try the hot water, & wand approach combined with some chemical treatment - we'll see how that goes.
-thanks!
david
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