I recommend preventative repair of the siphon pump "seals" at about 100,000 miles or more accurately 3000-4000 hours. Or: when the electric pump fails or any excuse to remove the back seat.
Teflon is INERT. I'm not aware of a common chemical that dissolves Teflon.
From the oatey website:
Quote:
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Use on any threaded pipe carrying dilute acids, compressed air, aliphatic solvents, dilute caustics, cutting oils, diesel fuel oil, hydraulic uids, L.P. Gas, natural gas, petroleum solvents, steam, vegetable oils, water and many more.
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I have to remove my jet pump sender soon and will disassemble the joint I fixed with Teflon tape specifically "FASTape" brand by Oatey. I will report back of course if that was a really bad idea or as predicted perfectly fine idea.
I will also get a sense of the nylon zip tie trick worked to keep the o-ring joint square and functioning.
I actually recommend FIRST check your jet pump "seals" (quotes on purpose as shade on the piss poor design) because I probably replaced a perfectly ok pump with 20,000 miles of life because the jet pump was spraying like a garden hose