The Saturday Morning Plumber’s Quiz: Can You Name These 20 Hardcore Plumbing Tools?
Why must you brush bright purple colored primer onto plastic PVC pipe joints before applying PVC glue?
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Purple PVC primer serves two functions: it chemically softens the hard plastic surface of PVC so the glue can weld the joints, and the bright purple stain allows plumbing inspectors to verify it was used.
Why must you brush bright purple colored primer onto plastic PVC pipe joints before applying PVC glue?
To dye the glue so inspectors see a successful seal
To chemically soften the plastic structure for a welded bond
To prevent tree roots from digesting the plastic joints
To disinfect the pipes before water flows through
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