Wavin Osma Overflow Solvent Double Socket - 21.5mm - White

You must use Wavin Osma primer and Wavin Osma solvent weld cement specifically designed for PVC-U pipes and fittings to ensure a strong, permanent bond.

No, this fitting is exclusively for 21.5mm solvent weld PVC-U pipe. It is not compatible with copper or other pipe materials.

Its primary application is for draining overflow water from condensing boilers, water heaters, and storage cisterns using a solvent weld pipe system.

Solvent welding is a process that uses a chemical solvent to fuse PVC-U pipes and fittings together, creating a single, leak-proof piece of pipework.

While solvent weld joints are strong, this fitting is intended for overflow and condensate drainage, not high-pressure main water lines.

Refer to the Wavin Osma solvent weld cement manufacturer's instructions for specific curing times. Generally, allow sufficient time for the joint to set firmly before use.

Ensure proper surface preparation (clean, dry) and adequate application of primer and solvent weld cement. Re-cutting the pipe and re-making the joint may be necessary if the initial bond failed.

Check for obstructions inside the socket or on the pipe end. Ensure the pipe is cut square and de-burred. Re-priming and re-cementing may help.

This could indicate damage during storage or installation. Inspect the fitting carefully and replace if any damage is found before proceeding with installation.