Tank Capacity
Hi all,
I took some crude ruler measurements of my freshwater & holding tanks plus did some comparisons against online replacement tanks. I do not know who made the tanks for GSC.
The freshwater tank measures approximately 7 3/4 inches high & 17 1/2 inches wide. It extends about 2 ft less than the 100" total width of the coach. Unlike the GSC claim of 70 gallons capacity, I calculate a maximum possible of 55 gallons; more than likely as little as 48 gallons.
The grey & black water tanks are difficult to ruler measure. Curbside height of each is 4 1/2 inches & width is 18 1/2 inches. Note that this end should be raised off the deck (or hung flush with the overhead floor) by approximately 2 inches so that fluids will flow toward the drivers side. The driver's side of each tank is most likely a little over 6 inches in height. I'm estimating the maximum length of each tank to be under 60 inches. Replacement tanks of those dimensions are rated at about 25 gallons - a far cry from the GSC claim of 50 gallons.
In summary, by MY estimate:
a) freshwater = 50 gallons
b) greywater = 25 gallons
c) blackwater = 25 gallons
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