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...
Forum Discussion
Let's say between brushing teeth and washing hands, you used 5 gal.
That leaves 27gal...so a little over 5.5 gal for 5 showers will use up the rest.
If you are intense about it, you could probably reduce the usage to 3-4gal per shower but at some point, it's no fun being dirty.
Putting a removable blade valve (you can buy them for about $25 and there is no installation needed) on the main outlet and then opening the valves so it equalizes between the 2 gray and 1 black tank will likely buy you at least a couple more days.
That leaves 27gal...so a little over 5.5 gal for 5 showers will use up the rest.
If you are intense about it, you could probably reduce the usage to 3-4gal per shower but at some point, it's no fun being dirty.
Putting a removable blade valve (you can buy them for about $25 and there is no installation needed) on the main outlet and then opening the valves so it equalizes between the 2 gray and 1 black tank will likely buy you at least a couple more days.
