Bottom Section construction (part 1)

A little more tricky, this section. The inner lip of the entry needs to be filed off using a half round file to maintain the profile. A 100mm length of 40mm pipe needs to be pushed through the entry, and the 40mm elbow solvent welded on to it inside the bottom main fitting at the same time as welding the pipe. Similarly a 60mm length of pipe is welded in to guide the water downward.

Note the orientation of the bottom main fitting, with spigot pointing downward. (Photo is looking at the bottom)