I work in environmental remediation, and over the past few years, a huge amount of my work has shifted to support PFAS release investigations. Given recent developments, I have concerns about PFAS in components of my drip irrigation system - particularly in the PTFE thread tape used between hose fittings, which from what I've read do seem to leach PFAS into the water.
I've had difficulty finding an alternative that is not permanent - I need to disconnect most of the components of my system in the fall to prevent breakage in freezing temperatures. The best option I found, a hemp fiber and waxy paste combination, seems to be available only in Europe. I'm not certain that is easily removed either however. Other options, such as pipe dope and UHMW tape (which is backed with a strong adhesive) appear to be suitable only for permanent applications.
Does anyone have any ideas/experience with alternatives that are PFAS free, yield a tight seal (imperative to maintain water pressure), and can be removed with relative ease?
To anticipate the question of whether I can use earthworks to replace the irrigation system entirely, the answer is unfortunately not. My partner is concerned about slope stability (we are on a relatively steep hillside and get a lot of rain, just not during the hottest months of the year) and has vetoed any substantial digging/earthworks that would impact water storage.
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