Hi Folks , Is it safe for me to use a very small amount of pvc primer and glue to glue the removable nipple on my fish tank pump to the pump body ? The nipple gets conected to 1/2 inch vynal tubing. This is my nutrient extraction system for my General Hydroponics Watertfarms. I would not use the primer/glue that is specifically made for irrigation systems, but the stuff that is made for drinking water lines. It seems like it would be safe to me, but I allways like to check with the PROS first . Thanks Everyone, Peace, Bube