Jason, what kind of tubing/hose did your pa4 use? Was it a flexible hose? This tubing was fairly rigid, like nylon, and might have snapped when putting the pump in. The directions required using a hair dryer or heat gun to heat up the hose before pushing it on, and the clamping it.
I might substitute some more flexible submersible hose.
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"...ridge reamer and ring compressor? Do they have tools like that?"
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