When you are running PVC for plumbing, you will always need to use a PVC valve in several areas of the pipe in order to keep them together. You have to use a PVC valve to help regulate water and to combine pipes. You'll have to go outside or to the basement and locate the area that is the problem and take care of it. Calling a plumber will cost a lot of money, but replacing a PVC valve is something that you can do on your own. After you have dug out the pipe where the valve has failed, you will now have to replace it, and the article below will offer some tips to make this as painless as possible.
1. Turn Off the Service
The most common service that uses PVC pipe is plumbing. If you do not want a tremendous mess on your hands, you should always make sure that the water is turned off. If the pipe is used as drainage and does not connect to your usual plumbing, then you do not have to turn off the water supply.
2. Remove the Damaged PVC Valve
When PVC pipe is used for plumbing, the valves are always attached with a sealer that acts as glue. This is usually what the cause of the problem is. This sealer also makes it more difficult to replace the PVC valve. You will need to use a saw in order to take out the valve. A hacksaw will work, but a reciprocating handsaw will make the job go much faster. Cut the pipe as close to the ends of the valve as possible.
3. Correct Fit
If the PVC valve goes easily onto the main pipe, then you have the wrong size of PVC valve. You want a watertight seal, and if you can easily slide the PVC valve onto the pipe (or off), the seal is not going to be good enough. You want to use a PVC valve that needs to be forced onto the ends of the PVC pipe. It is even better if you need to use a mallet to hammer it in place.
4. Large Enough
Having a PVC valve that fits snugly is one part of the equation. The valve has to be long enough to cover the distance of the pipe on both ends. If it does not, then the pressure that builds up in the pipe can cause the valve to burst and pop right off the pipe. One trick is to measure the current valve and choose one that is longer than the previous valve.
5. Seal Inside and Out
One mistake that people make is that they neglect to seal the PVC valve and the pipe. The liquid sealer is waterproof but acts as glue as well. Don't just seal the outside and neglect the inside. Always apply the sealer to the inside of both the valve and pipe and both ends prior to assembling them.