pappaw wrote:Hi Guy:
Yes you could use a plastic gasoline can. No you would not need to vent the tank as long as there is a vent somewhere in your system. You would not need a garden hose fitting. What would you use that for? flushing out the tank? The problem I see would be you would need a 3" flange fitting to hook to your toilet for the incoming waste and one in the bottom to go to your dump valve and hose, and all this for just 5 gals? Or are you just talking about a grey water tank?
I purchased a 16 gal water tank on evilbay, (these tanks start at about $20 and go up in cost compared to the size) (as you found, black water tanks are much more expensive, but are built to a taper so the solids drain out better) and added the 3" flanges and it works fine. I just flush the tank thru the toilet when dumping.
Hope that helps.
bobhenry wrote:I found 40 of these !
The guy wanted $5.00 each.
I bought 6 for me and 2 for a buddy. They had contained car wash soap.
They have a 3/4" and a 2" NPT threaded bung just like their 55 gallon cousins.
I figured 1 for pottable water, 1 for rainwater harvest ,and one for greywater storage.
Draw from the 2" with a tee installed for a cleanout drain and utilize the 3/4" for the vent stacks
bobhenry wrote:15 gallon ! if you are asking volumn
and if you are wanting dimensions if I have to guess about 16" in diameter and 32 - 36 inches tall.
I imagine ANY car wash will have something similar.
Forrest747 wrote:THis is what I did to make a grey water tank for my trailer. Took some 3" black pvc joined them together and had the drain of the sink head in. i didnt do a p-trap which i am sure i will regret later. i started out with one drain and then i realized if i needed to get something out i should have caps on all of them, so i added those. I am happy with them, they should hold about 4 gallons.
Forrest747 wrote:I am still trying to figure out what fitting. I really an clueless when it comes to RV waste fittings. Looking forward to ur build
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