Hi new user here. I recently purchased my first boat with a head on it. Researched many past posts and found them super helpful. Removed the old WC toilet and plumbing lines and am replacing with the Raritan Superflush and Saniflex hose. Thinking intake will be shields or trident 148. Both hose specs appear to state no antifreeze though... per Miss Peggy's winterizing instructions antifreeze gets pumped through the system into the holding tank as the procedure. Will this compromise the hoses or is there a better choice of hose if winterizing will happen? Thanks!