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Thank you for the replies.The mounting bolts are on the tub itself. It does not seem practical to change those - I would have to work from underneath the tub. I had thought about cutting them off and then attaching the plumbing and then gluing down the pump, but that seems impractical.I have watched a video on plumbing alterations, but am not confident with it. The plumbing used on our tub is different from what I've seen in the videos -- it's corrugated.It seems by best option is to get the adapter and see how it affects the flow. Unfortunately, it's not easy to access the pump because the previous owners of the house (who assembled the tub), put the motor up against the wall making it inaccessible. I had to drain the tub, then get two guys to help me lift it up onto the tiles and then slide it out from the wall in order to access the pump. This also means that I have no easy way to check for leaks or proper functioning unless I leave the tub away from the walls and half up on the tiles, then drain it again when I want to move it against the wall.I have pictures of the gap in the plumbing, but didn't see an easy way to attach it on my post.Thanks again.
I don’t know if that restriction would shorten pump life or not as the pump and motor are designed to pump against head pressure that is normally caused mostly at the jets. I would say it will most defiantly reduce the force of the jets. If there is the opportunity to shorten the output pipe and do the connection without the restriction as Tman122 suggests that would be a much better way to do it.