Cut off enough
PVC joints can be sealed by thermal welding, usually using a special heat gun and rod, to put a fillet between the pipe and the fitting. You could also try a soldering iron to melt and displace some material from the fitting to the pipe to seal the hole. I would first clean the area with solvent.
Hose clamps fix small leaks in a PVC pipe using compression. Start by wrapping the rubber around the leaky part and installing the hose clamps over the rubber. Appropriately tighten them to stop or slow the leak. The clamps will seal the leak if positioned correctly.
Self-fusing silicone tapes provide an effective and straightforward method for quickly sealing pipe leaks. Stretching and wrapping these tapes around a pipe creates an effective waterproof barrier; making these ideal emergency repairs thanks to being heat resistant, durable, and compatible with various pipe materials.
Your pvc joints are leaking because they weren't prepared properly. The joints need to be squarely cut using a pvc cutter. They need to be cleaned using a proper pvc cleaner, they need to be primed and glued using proper primer and glue for the temperature and application.
Flex Seal Won't Work Well on Most Plumbing Components
Although galvanized steel and copper are frequently found in plumbing systems, so is PVC.
First, remove any oil or debris from the female and male threads, and then apply some tape to the last thread. Wrap it around the leaking threads clockwise while keeping the tape tight simultaneously. Typically three to five wraps are sufficient, but you can apply as many as you like.
If you need a quick fix for a leak in a joint, it's better to use epoxy putty. First, clean and dry the leaking area. Then, mix and knead the two-part epoxy putty together to start the chemical reaction and apply it to the leak and around the whole joint with your fingers or a putty knife.
Plumber's putty is a small but important product in the arsenal of any DIYer. You've seen it at hardware stores or in your friendly plumber's toolbox. If you have to stop or prevent leaks around your faucet, sink, or tub drains, plumber's putty is the product you need.
Use epoxy putty or pipe putty as a temporary fix to a leaky pipe. Pipe putty is designed to harden at room temperature and seal the hole or crack.
Silicone plumbing tape for leaks can help form a temporary waterproof seal to prevent water from leaking while you seek a permanent fix. Pipe thread pipe won't accomplish this effectively, and shouldn't be used. To summarize: Use pipe thread tape to seal leaking joints.
Apply PVC primer: Use a brush to apply PVC primer to the outside of the pipe end and the inside of the fitting. The primer only needs a few seconds to dry. Apply PVC cement: When the primer is dry, use a different brush to apply PVC cement to the same areas. Apply the cement in a thin, even layer.
Apply solvent weld adhesive: Apply a thin, even layer of solvent weld adhesive to both the pipe end and the inside of the fitting. Work quickly, as the adhesive dries fast. Insert the pipe into the fitting: Immediately push the pipe firmly into the fitting, aligning the marks you made earlier.
Material of the Pipe: Different pipe materials (PVC, copper, galvanized steel) react differently to silicone. Ensure compatibility before use. Temporary vs. Permanent Fix: Silicone can offer a temporary solution, but for a permanent repair, you may need to replace the affected pipe or use more specialized materials.
Plumber glue: Your guide to problem-free plumbing repairs. Always use plumber glue when doing plumbing jobs around the house. It's the best way to ensure joints won't leak later. This inexpensive, easy-to-use adhesive is the secret to problem-free repairs.
Rigid PVC = RPVC or uPVC can be bonded with Cyanoacrylates and UV Curables. However, 2 component epoxy adhesive or structural acrylic adhesives also bond this type of PVC.
Plumbers putty is very easy to manipulate into tight areas, and it's also easier to remove. That makes silicone putty better for waterproofing, even if it's more difficult to work with. As mentioned, plumbers putty doesn't dry in the way you might expect so don't play around with it or attempt to force it to dry.
Although this product creates a watertight seal, it is not an adhesive or glue. Thus, it should not be used in any pressurized connection, such as a gasketed fitting or on the thread of pipes.
Generally, the easiest and most effective sealant for leaking plastic pipes is a liquid pipe compound as they can create air-tight seals around a leak. In some cases, a silicone repair tape may be just as effective, provided the leak is small enough.
Minor leaks at joints can often be repaired using epoxy putty or repair tape without the need for cutting. However, for more severe joint issues, cutting and replacing the section may be unavoidable.
When PTFE tape is wrapped around PVC male threads, it will add strain. Thicker premium grade tapes will also increase the strain. When you work with threaded plastic fittings, you should use a sealant specifically designed for plastic fittings.
Pipe thread sealant is a surefire way to get a very strong seal between your pipe thread connections so there aren't any gaps between them that allow liquid or gas to escape. It's a technology that is ideal for joints, which are considered to be dynamic due to vibration, changing pressures or changing temperatures.
The best bonding agent for PVC pipes and fittings is PVC solvent cement, and there are no substitutes that are good enough to replace it, especially for high-pressure applications.