Bradford White TG-199E-N - Manual (Page 49)

49
Figure 20.
Piping for Mineral Scale Flushing.
Rinnai
Water Heater
Gas Supply
V1
V3
V2
V4
H1
H2
H3
Circulating Pump
5 gallon pail of virgin, food
grade, white vinegar (or virgin,
food grade, citric acid)
.
Cold Water Line
Hot Water Line
n-line
Filter
I
Eve r Hot®