Companies usually only make 1 type of T-handle so this should be easy. Just ask for a replacement T-handle and they should know exactly what you need. The handle often breaks after a few years of use because it’s used to slide the extension rod in and out. Repeatedly pulling and pushing the handle will cause the threading to wear down, and it will eventually break. A replacement handle will cost you $3-10.
This is a great opportunity to wipe the threading down with a clean cloth. If the end of the rod looks a little dirty, just grab a clean rag and rub the threading to remove any gunk.
A bent or broken rod will make it difficult to open or close the valve, which can keep your sewage from staying in the pipe behind the valve. Be sure to order both the aluminum rod and a T-handle. These pieces normally come together, but if they don’t, buy them separately from the manufacturer. Measure the rod if the manufacturer makes handles in various sizes. To do this, pull your rod out and measure its length—the most common size is 72 inches (180 cm). We cover the rod removal process in the following steps. This rod will cost roughly $5-10.
Slide a bucket under the faulty valve if your extension rod is leaking when you open it.
Just to clarify here, there are 2 rods connecting to your drain valve. The extension rod is the portion closest to the T-handle. The piece that sticks out of the base, on the other hand, is attached directly to the drain valve. If this piece is faulty, you need to replace the entire valve (which we’ll go over in the next section). Rotate the extension rod by hand once you loosen it with the pliers if you’re able.
Dump any excess bucket waste into the septic tank you hooked the RV up to. Or, dump it in your toilet carefully and flush to send the waste back through the system. Take your gloves off and throw them out after you’re done. If they got dirty, wrap them in a plastic bag before tossing them out. When you’re finished, be sure to wash your hands thoroughly.
If the water is dark and foul-smelling, it’s your black valve that needs replacing. If the water is clear and has no odor, it’s your gray valve. You can also determine which valve is leaking based on the size, which we describe in the next step. The process below describes both black and gray waste valve replacement. The waste valve is always located right behind the sewage pipe where you dump your gray or black tank. It has a square frame and a handle sticking out of the side.
Be sure to get the valve with the extension rod and T-handle. Almost every valve comes with these pieces automatically, but double-check just to be safe.
Unfortunately, this process may get a little messy. You’re dealing with a pipe that carries waste, so be prepared for funky odors.
Make your black tank system even cleaner by flushing the toilet repeatedly. To clean a gray tank, run the shower. This will send clean water through the pipes to clear them out. If you have a rinse setting on the tank, run it after you empty the tank. This is the best way to clean the system out.
This can be kind of tough depending on the location of the valve. If your waste valve is tucked under the vehicle, you may need to crawl underneath or reach behind the sewer line to access the screws.
The new valve will come with 2 round flanges (or seals). The flanges fit around each pipe connection on the sides of the valve to reduce friction between the valve and the sewer pipes. Note that if your waste valve’s instructions don’t mention lubricating the flanges, you can safely assume you don’t need to lubricate.
You can orient the valve in 4 directions since the screws are arranged in a square. Pay attention to where you’re installing the handle to give the extension rod room to pull out.
If the extension rod isn’t built into the valve (it normally is), attach it to the valve afterward by twisting it over the valve rod sticking out of the side. Flush the entire system with clean water after installing the new valve to make sure it doesn’t leak. Empty the waste bucket in the campsite’s septic tank or flush it down your toilet carefully. Discard your gloves after you’re done by placing them in a plastic bag and tying the handles. Wash your hands thoroughly when you’re done.
