Gray tank capacity
I believe my Gray tank capacity is about 33 gallons for the shower and bathroom sink. I have a separate tank for the kitchen sink. We started with an empty tank on Friday morning and brushed our teet...
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My wife and I could squeeze out a 3 day / 2 night weekend on a 33 gallon gray tank. That was 2 shower each plus other hand washing, dish washing, etc. I'd say you did about right. Now that I have 3 kids our next RV will absolutely have a much larger tank.
