Adjustable Drain Pipes
Insta-Plumb fittings use the same concept as push-connect fittings, and offer some handy perks.
Compared to many other fussy, challenging, and time-consuming aspects of residential construction, connecting solvent-weld drain/waste/vent (DWV) pipes is low on the labor-intensity scale. Insta-Plumb fittings by Keeney employ the same concept used with push-connect supply-line fittings such as SharkBite connectors, relying on a stainless-steel grip ring to hold pieces together and an O-ring to provide the seal. While these PVC fittings aren’t likely to replace glued connections, they do offer some perks that might come in handy, such as the ability to twist drain pipes into alignment after they’re connected, and to disassemble components for changes or repairs and still be able to put them back together again. As a point of comparison, a five-pack of 1-1/2-in. couplings sells for about $14, or roughly $2.80 apiece. A standard solvent-weld PVC coupling in the same size is just under a dollar.
—Justin Fink, editorial director
From Fine Homebuilding #293
