Pool hose to 40mm plastic pipe adapter

Takes that corrugated plastic swimming pool pipe and allows it to be connected to 40mm waste pipe. Means that you can be creative with swimming pool plumbing.
The pipe is a left hand thread and collapses if you screw it to tightly into a connector. My version has a supporting tube part way down to prevent this. The other end is 40mm diameter so use ABS and pipe cement to bond the two parts firmly.
Try to use as little support as possible - my UP! plus puts lots of support in and it took 1/2