Non-metal water well polyvinyl chloride (PVC) casing pipe and water well drop pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such water well casing pipe and drop pipe; non-metal water well PVC casing pipe and water well drop pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such water well casing pipe and drop pipe for municipal uses; non-metal PVC oil well drop pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such drop pipe, wherein the oil well drop pipe is used in the casing pipe of oil wells; non-metal solvent weld water well PVC casing pipe and solvent weld water well drop pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such solvent weld water well casing pipe and drop pipe; non-metal slotted water well PVC casing pipe and slotted water well drop pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such slotted water well casing pipe and drop pipe; non-metal slotted water well casing pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such slotted water well casing pipe for use in aquifer storage and recovery, agricultural irrigation, and geothermal applications; non-metal slotted PVC underdrain casing pipe, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such underdrain casing pipe; non-metal PVC casing pipes with machined slots for use as underdrain pipe through which water may percolate for use in solid waste landfills, drainage and dewatering applications, leachate collection systems, and mining heap leach applications, and non-metal pipe fittings in the nature of couplings, reducers, and caps for such slotted underdrain pipe