GD Newbie with questions about adding or upgrading the tanks

[theXGENbus]

We have been traveling full-time for more than a year and have now crossed into the 5th wheel world. So far, we lover our 2023 278BH. Previously, we traveled in a self created 30" Skoolie. We enjoy the life off- griid; however, the tank sizes just are not big enough to stay out more than a week. Are there any clear schematic on the tank locations? I really do not want t remove the entire underbelly to map these out. I have found the typical plumbing diagram; however, no location. Please forgive the repeat if this was addressed at another time.

[Country Campers]

Welcome.

Have you contacted Customer Service? They could give you a drawing for the tank layout. There is not much, if any, room to add more tanks in the underbelly. You should have 2 tanks side by side under the front pass thru storage, black and grey for the shower, one at the rear for the kitchen, and a fresh tank in the middle.

Brian

[TucsonJim]

We have been traveling full-time for more than a year and have now crossed into the 5th wheel world. So far, we lover our 2023 278BH. Previously, we traveled in a self created 30" Skoolie. We enjoy the life off- griid; however, the tank sizes just are not big enough to stay out more than a week. Are there any clear schematic on the tank locations? I really do not want t remove the entire underbelly to map these out. I have found the typical plumbing diagram; however, no location. Please forgive the repeat if this was addressed at another time.

As Brian states, contact GDRV customer service at 574-825-9679. Have your VIN readily available. Ask them for a copy of "Holding Tanks" drawing dated 05/09/20. FYI, all three of your holding tank part numbers are H1024, 39 gallon. Your fresh water tank is 55 gallon.

Jim

[Yoda]

Have you considered aux tanks? I have seen saddle water tanks either side of the 5th wheel hitch on my Alaska trip and a roof top mounted water tank - similar to what horse trailer have. For gray or black tank some folks carry a tote. I have also seen folks mount spare tanks and other things using the BAL tire carrier https://balrvproducts.com/product/hide-a-spare/. I don think you will find much room to up size the gray and black tanks, but the water tank is held in with a bolt in cross member. It may be possible to up size that one, but you will need to drop the belly fabric to see in some locations

Here are a few pictures of my trailer that wound have similar placement to yours..https://gdrvowners.com/forum/exterio...flection-220rk The cross member on the fresh water (white) tank is removable on the side towards the sewer piping. Otherwise there in not muck room to spare and lots of stuff in the way.

Hope this helps.