Hi Josh, When I bought Astralis, there were 90 degree white PVC elbows coming out of the strainer leading to the engine and a grey plastic (PVC?) tail pipe leading to a seacock through which the sink and A/C drain. If those were the same on yours, I suspect they were put in by the factory. At any rate, I (finally) replaced them after about 4 years of ownership, as the surveyor noted a preference for bronze. That said, they were below the waterline and would subject the boat to flooding if broken.
As for what it sounds like you're suggesting for the bilge pump, I see no reason why it would be problematic, though I have to ask, what would the advantage be over a good quality hose? Hope you're doing well, Bruce Whitmore 1994 C&C 37/40+ "Astralis" Madeira Beach, FL (847) 404-5092
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
