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Inside Practical Sailor Blog
by Darrell Nicholson on June 10, 2013
In the upcoming July issue of Practical Sailor, contributor Drew Frye plunges into the not-so-funny topic of joker valves (if you don't know what this is yet, consider yourself lucky) and emerges with some valuable tips on keeping our marine heads healthy. One of his potentially controversial discoveries is that the "eco-friendly" anti-freeze propylene glycol isn't any kinder to the marine environment than the anti-freeze it was designed to replace - ethylene glycol - and it is definitely harder on plumbing components.