Valterra Bladex 3" waste valve
I have to replace the dump valve for my black tank. It looks like a fairly simple job. There are 4 bolts keeping it in place. I have a new one but the problem is the 2 rubber seals that came with it. ...
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"Rubber Ducky1"....The raised edges go outward, away from the blade.
Remember, the drain valve is designed to rotate freely, so you can angle the drain to any point you like. Keep this in mind when trying to access the four bolts, I think they're 7/16'. A small quarter inch drive socket set works well with a combination box/open end wrench.
The most difficult part of the installation is keeping the rubber seals in place when installing the valve. First, take a small amount of Vaseline or grease and place it on the raised edge side of the seal and install it in the valve. Take a plastic milk carton or similar thin plastic and cut out the side of the carton so the cut out is larger than the side of the valve. You need two pieces.
When you're ready, take the plastic pieces you cutout and place one on each side of the valve, making a valve sandwich. Slide the valve into place and visually align the pipes to the sides of the valve. Once aligned, slide out the plastic pieces. This will keep the rubber seals from moving during installation. Reinstall the bolts and tighten. Don't go crazy tightening them, but they should be tight. Once done, make sure the blade opens and closes smoothly.
Remember, the drain valve is designed to rotate freely, so you can angle the drain to any point you like. Keep this in mind when trying to access the four bolts, I think they're 7/16'. A small quarter inch drive socket set works well with a combination box/open end wrench.
The most difficult part of the installation is keeping the rubber seals in place when installing the valve. First, take a small amount of Vaseline or grease and place it on the raised edge side of the seal and install it in the valve. Take a plastic milk carton or similar thin plastic and cut out the side of the carton so the cut out is larger than the side of the valve. You need two pieces.
When you're ready, take the plastic pieces you cutout and place one on each side of the valve, making a valve sandwich. Slide the valve into place and visually align the pipes to the sides of the valve. Once aligned, slide out the plastic pieces. This will keep the rubber seals from moving during installation. Reinstall the bolts and tighten. Don't go crazy tightening them, but they should be tight. Once done, make sure the blade opens and closes smoothly.
