How to Glue a Fitting on a Water Tank on an RV

••• rv image by Greg Pickens from

Explore America's Campgrounds

Water tanks are part of a recreational vehicle's plumbing system. The fresh-water tank isolates fresh drinking and bathing water from the grey tank used for shower and sink drainage and the black tank used for the sewage process. Attachments and fixtures on the tanks at times need to be replaced or repaired. If the piece you need to replace requires gluing, there is a tested method to use for the repair.

Items you will need

  • Sandpaper

  • PVC all-weather glue

  • Rags

Step 1

Wash and dry both sides of the fitting, and clean the external fitting and the attachment point at the tank.

Step 2

Rub the fitting's inside edge and the external connection point on the tank with sandpaper. This makes the PVC surface porous and ready to absorb the waterproof PVC glue.

Step 3

Apply a coat of the glue to each of the sanded areas. Connect the fixtures and give time to dry as per the glue instructions. Wipe away any excess glue from the area before it dries.

Step 4

Test the connection by pulling it with your hands to ensure it has dried and sealed properly.


About the Author

A former Alaskan of 20 years, Eric Cedric now resides in California. He's published in "Outside" and "Backpacker" and has written a book on life in small-town Alaska, "North by Southeast." Cedric was a professional mountain guide and backcountry expedition leader for 18 years. He worked in Russia, Iceland, Greece, Turkey and Belize. Cedric attended Syracuse University and is a private pilot.

Photo Credits