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The two main check valve springs are different gauges. Which goes where? No videos ever say.
The stronger spring will go in the #1 check valve which is the check that is upstream. The weaker spring goes in the #2 check (downstream) check.
The two main check valve springs are different gauges. Which goes where? No videos ever say.
The stronger spring will go in the #1 check valve which is the check that is upstream. The weaker spring goes in the #2 check (downstream) check.