1975 Safari 23 Holding Tanks Capacity ?

[JamesH]

Does anyone know the capacity of the grey and black water holding tanks in a 1975 Safari 23? I have been searching high and low for this spec. I have the original owners assembly manual and it does not give the capacity. I even have a copy of the original brochure and it list the fresh water tank capacity but only says “enough for a long weekend getaway” with regards to the main and auxiliary holding tanks.

I know they are not that big. I had them out during my restoration. I’m just trying to decide how large of a portable tank I would need to empty both tanks at full in state parks with water and electric only.

Hopeful for some wisdom from the forum here.

[HiHoAgRV]

In the absence of someone replying with data from a good source and my useless reply of ‘tiny gray tank’, fill it up from a 5 gallon bucket. I believe the gray is like 10 gallons.

[SlvrTwinkie]

If they used the same tanks as I have in my 76 Ambassador you would have a 10-12 gal grey tank and about a 20 gal black tank. I ran into the same issue you have, and everything I found said the same as you found. So I used a 5 gal water can and filled the both tanks until full and kept track of the number of times I dumped 5 gallons in and did the math. 4 full 5 gallon cans into the black equals 20 gallons. Then the grey took just under 2 1/2 cans until it backed up into the tub. I can't see the drain pipe for the tub holding 2 gallons of water, maybe 1/2 gal to a gallon at most

[AldeanFan]

I have a ‘77 Safari 23, not sure if the tanks are the same but According to the manual I have
Grey 10gal
Black 14gal
Fresh 50gal