Fresh Water Capacity

[WTPenn]

Can anybody offer any advice as to how to increase the onboard fresh water capacity of my Camper .
I own a 2014 , 35' Heritage Glen , which has a F.W. tank capacity listed as 44 Gal .
I'm looking for a means to increase the onboard capacity . I opened up the underbelly , to see if there was a way to replace the tank with a larger one .
It doesn't appear as if that is possible , due to the cavity in which it's placed .
Is it possible to add an additional tank in another joist cavity ?

[SeaDog]

Welcome to the forum its a great place to get your questions answered. Tanks come in all different sizes and adding one would require bracing and plumbing some consideration needs to be given to added weight and position. May be easier to place a tank in one of the storage compartments and us a portable pump to transfer water JMHO

[WTPenn]

Originally Posted by SeaDog

Welcome to the forum its a great place to get your questions answered. Tanks come in all different sizes and adding one would require bracing and plumbing some consideration needs to be given to added weight and position. May be easier to place a tank in one of the storage compartments and us a portable pump to transfer water JMHO

Thank you for the reply Seadog .
I'm not concerned about weight , due to the fact that I only fill tanks upon entering campground .
Guess I'm wondering where I could locate another tank , in the underbelly .
I could remove the covering , to inspect myself , but that's a bit much .

[5picker]

If there is room, yes you could add another tank.

Have you thought about a bladder for in the tow vehicle?

[ependydad]

This comes up about every 6 months or so. The answers are almost always methods of carrying water that don’t involve mounting a tank.

I don’t recall a thread where someone posted that they DID add an extra tank.

I think you need to pull the underbelly to determine if there’s room or not. And if so, how you would accomplish it. I assume a low point drain and a pump to transfer water to your original water tank. Unless you plumbed them together somehow.

[B and B]

I have 65 gallons and we want a second tank ourselves. I am looking at a additional in bed tank in the truck. I found a surplus tank in Elkhardt we are going to buy and use our transfer pump to fill.

[timfromma]

Seems to me that unhooking and driving to a potable water spigot when a refill is needed would be cheaper with far less aggravation.

[WTPenn]

Originally Posted by ependydad

This comes up about every 6 months or so. The answers are almost always methods of carrying water that don’t involve mounting a tank.

I don’t recall a thread where someone posted that they DID add an extra tank.

I think you need to pull the underbelly to determine if there’s room or not. And if so, how you would accomplish it. I assume a low point drain and a pump to transfer water to your original water tank. Unless you plumbed them together somehow.

Thank you !
I'll pass on anything I learn .

[Flybob]

You need to consider weight and weight distribution when considering adding another 44 Gal (350 lb) tank. A simpler and more flexible solution is to get a bladder for the TV and a transfer pump. This has several advantages including the ability to replenish without moving the RV and leaving home on a short trip.

[RFishstick]

When filling up at your destination, you can top off the fresh water tank after the water heater fills (if not an on-demand type). That will give you a little more to work with in the short run.

[MR.M]

Originally Posted by WTPenn

Can anybody offer any advice as to how to increase the onboard fresh water capacity of my Camper .
I own a 2014 , 35' Heritage Glen , which has a F.W. tank capacity listed as 44 Gal .
I'm looking for a means to increase the onboard capacity . I opened up the underbelly , to see if there was a way to replace the tank with a larger one .
It doesn't appear as if that is possible , due to the cavity in which it's placed .
Is it possible to add an additional tank in another joist cavity ?

adding a extra tank is very doable . you can order the tanks with the fittings you need and run them in series or parallel. when you order just let them know what size fitting you want and where you want them . old metal bed frame brackets work great . you could even plumb them in so you won't need an extra fill . just a vent and drain . maybe another 44 gallon one ?

[MR.M]

Originally Posted by RFishstick

When filling up at your destination, you can top off the fresh water tank after the water heater fills (if not an on-demand type). That will give you a little more to work with in the short run.

filling the h/w/h will not increase the 44 gallons . with a full h/w/h you will still get no more then 44 gallons of usable water . in fact the way they plumb some of these tanks you'd be hard pressed to get a full 44 gallons .

[WTPenn]

Originally Posted by MR.M

adding a extra tank is very doable . you can order the tanks with the fittings you need and run them in series or parallel. when you order just let them know what size fitting you want and where you want them . old metal bed frame brackets work great . you could even plumb them in so you won't need an extra fill . just a vent and drain . maybe another 44 gallon one ?

This sounds exactly like the course I'll pursue Mr M . Is this something you've done ? Can you steer me to an area in which to find a vacant joist cavity ?
Any recommendations of a good place to order / purchase tank ?

[jeff64]

Ever since I've been RVing, I've carried 2 6 gal. jerry cans in case I run out. I use them every once in a while when I'm out 3-4 days. Beyond that we look at FHU sites

[itat]

Would you have enough waste tank capacity to handle all the waste water? All that water has to go somewhere.

[WTPenn]

Yes

[MR.M]

Originally Posted by WTPenn

This sounds exactly like the course I'll pursue Mr M . Is this something you've done ? Can you steer me to an area in which to find a vacant joist cavity ?
Any recommendations of a good place to order / purchase tank ?

Iv.e worked on plenty but never did a retro fit . You'll have to look for a place as i'm not familiarized with your unit . I would suggest you just drop the whole under belly , that way you can tidy up in there and add Insulation , if the tank you have now is up front look for a spot further toward the back . that way the tanks will offset themselves . the plumbing part is pretty self explanatory, you reaslly only need to 1/2 fitting on the new tank one top side and one bottom . the top one is where you run the vent tubing to daylight . then the bottom can be your drain and supply to the other tank 1/2 outlet line . filling the tanks should equalize . the 1/2 line keeps water from rushing back and forth while towing .