rickh
Aquarium Advice Regular
The instructions for installing a MegaFlow standpipe in the bulkhead say nothing about using PVC solvent to glue the pieces together. All the pipes in question are inside the overflow box, normally submerged in water, not below/outside the tank. I am afraid if they are not glued together, if the water level in the overflow drops below the top of the standpipe the main flow would stop, but any small leaks would continue to drain into the sump. What do you think. R