Water tanks

[belfert]

If you are considering two tanks, I would make the grey tank about three times the size of the black tank.  We have never filled a black tank before filling the grey tank. It also didn't make any sense to have the holding tanks much larger than the fresh tank. You will always be filling and dumping at the same time.

I replaced my combined black/grey tank last year and made it 10% bigger than the freshwater tank this time.  All of the human waste and TP seem to make the waste tank fill faster than the fresh water tank empties.

[TomC]

Ardemco doesn't actually make the tanks. Ronco makes most of their tanks. In my bus I have a 130gal fresh, 85gal gray, 45gal black. In my truck I'm using 2-98gal fresh, 115gal gray, 69gal black-all made by Ronco. You can order directly from them and they gave me 50% off the listed price since I picked the tanks up directly from their Tustin, Ca location. Highly recommend Ronco-used them also on my big rig never having any problems in over 800,000mi of driving with the drain tanks mounted underneath between the drive shaft and the bottom fuel tank supports. Good Luck, TomC

[eagle19952]

http://www.kracor.com/support/holdingtanks.pdf

Kracor in Wisconsin may have what you need also.

[Lostranger]

Ronco makes most of their tanks.... They gave me 50% off the listed price since I picked the tanks up directly from their Tustin, Ca location.

I've been checking their prices. They may ADVERTISE free shipping, but it's just built into the price of the tanks. Not hard to give a 50% discount when you've inflated the price in advance.

[eagle19952]

when i bought my tanks they discounted over the phone...

[georgemci102a2]

My tanks are 65 fresh with on demand pump,65 grey with drip valve,and 65 black.both grey and black are plumbed (together)    each having a gate release into one tee that exits the floor of the bay to the sewer hose. having good luck with the system.  Most parts are from tractor supply,and a place local (in town) that builds concession trailers and makes there own tanks... George

[shelled]

My tanks are 65 fresh with on demand pump,65 grey with drip valve,and 65 black.both grey and black are plumbed (together)    each having a gate release into one tee that exits the floor of the bay to the sewer hose. having good luck with the system.  Most parts are from tractor supply,and a place local (in town) that builds concession trailers and makes there own tanks... George

where is "in town" though ?

[harleyman_1000]

 His profile says he lives in Grovetown Ga.

[Beesme]

Great info tanks a lot!   lol

[harleyman_1000]

http://www.kracor.com/support/holdingtanks.pdf

Kracor in Wisconsin may have what you need also.

Kracor wanted 1,275.00 for my tank. I  found a 100 gallon tank with 2 3" holes installed for 100.00 and 7.00 for each additional hole, but they only have 1 size in the 100 gallon 48"x48" x 10.5

[harleyman_1000]

I had my gray/black water tanks made the same size (well they are standard size) because they fit in the space.  I added a pipe to let the gray flow into the black when full.

Can you post a picture so I can see exactly how you added the pipe and where?

[Lin]

There are times when a combined tank is better.  For example, we are currently in a space that has no sewage connection.  We can use a hose to let the gray water out into a stand of pine trees leaving the whole 100 gallon tank for black.

I am not saying that this configuration is better overall, but rather each system can have its positives.

[Dave5Cs]

Except for the fact of let grey water out on the ground out of a tank that has had black water in it is not the healthiest of actions. unless there is lots of sunlight and heat to kill bacteria. Just sayin...........

Dave

[eagle19952]

i think he is diverting the gray....dumping pre tank...easy to do...

[Lin]

Yes Dave, that would be horrible.  Thanks for being so diplomatic, but as Eagle says, we use a gray water bypass.  Essentially, it is just a smaller dump style gate valve that stops the gray water from getting to the tank, and a ball valve that opens the drain pathway.

I think that this practice is not uncommon and okay if done within reason.  If you can let the water drain into plants or such, I think it is okay.  I would not think it is really acceptable on a paved surface like a truck stop or walmart.