Folks report accuracy problems with their gauges in this order:
Most often, black; sometimes grey; and infrequently fresh.
Since your fresh water seems to be working now, give it another chance.
Most often, the black tank gauges suffer from 'contamination' from solids. Sometimes serious flushing and increasing the amount of water in the black tank corrects the problem ... for a while.
There are after-market gauges that are more accurate, but they would be expensive and installation could be a problem for some vehicles. For most of us, we rely on experience and judgement and stick with the inaccurate gauges.
__________________
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
|