Schedule 40 PVC and Schedule 80 PVC (higher pressure) are inert.
PVC pressure pipe and fittings systems are non-toxic, odorless, and tasteless. The National Sanitation Foundation lists them for use with drinking water.
75 Gallon, 2X55W AH Supply CF 8800K, 1XMarineland Doublebright, 2X Marineland 350 Magnum; 45 Gallon Tall, 96Watt AH Supply CF 6700K; 30 Gallon Long; 2X36W AH Supply CF 6700K; 20 Gallon, 1X26W AH Supply LED kit; all with Press. CO2; (Calcined) Montmorillonite Clay
Greater Seattle Aquarium Society (GSAS)
Last edited by Seattle_Aquarist; 08-17-2012 at 03:22 PM.
Reason: added info