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Old 10-07-2013, 11:20 PM   #15
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Freightliner Owners Club
Join Date: Jan 2013
Location: Spokane, WA
Posts: 686
I use to blow out lines in the boats and RV's, but in recent years I started using RV antifreeze because the sink, toilet, and shower gaskets were drying out and I was replacing them often enough that it became a pain in the ..../. Since using the RV antifreeze the gasket replacements stopped. I thought I would get an aftertaste from it, but a good flushing in the spring and I was good to go. I don't leave any pressure in the lines with it. After the system is full, I open up all the lines and let the antifreeze run through until the pump just runs continuously without any pressure in the lines. This also fills the traps up. But like a previous post.....what ever works for you, I just didn't like the additional plumbing work.

02 Fleetwood Discovery 37U, 330 Cat pulling a 2006 diesel Liberty..or..2011 4dr Wrangler..or..20' Lund Salmon/Halibut Hunter
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