Can anyone tell me what size fits the test port on my Dometic 8551? I find many references to the fitting, but can't seem to find the recommended size.
Report back on your test results. There has been some different (slightly) numbers posted recently about what is acceptable. I always thought 11 column inches was the “Golden” rule. Maybe it’s only the minimum?
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Paul and Janet Braun
2003 Toyota 4Runner V8 now 2012 Toyota Sequoia V8
Escape 19' 2010 now 2014 Escape 21'
Report back on your test results. There has been some different (slightly) numbers posted recently about what is acceptable. I always thought 11 column inches was the “Golden” rule. Maybe it’s only the minimum?
This is what the RM2510 service manual says. I landed at right about 12" w.c. with no load to not drop below 11" with 50% of trailer BTU's operational.