Cool Mods - Thread restored 10/18/2012
My daughter was getting a little warm in her bunk during our last camping trip, so I decided to put her a fan in to keep the air flowing. I had been wanting to add a 12-volt fan to the main livin...
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I have been wanting to do a gray tank add-on mod since I bought our TT last year. Our upcoming vacation finally got me going on it. The existing gray tank was always to small, especially for 4 of us and 2 being female. I found a tank on E-Bay that would work. Bought some angle iron from the local metal supply store and went at it. Below is the before image, the only place I had to put a large enough tank to make it worth it was between the axles, the cheap tank on E-Bay fit perfect.
Below is the after image from the rear looking towards the old tank. The axle was slightly in the way for a straight run of the pipe to connect to the existing pipe, so I played it safe and put in a flexible hose section at that point so there would not be any extra stress on the hard plastic pipe at the point.
The Original tank claimed to be 36 gal but only held about 27, and I added 36 more. Tonight I did a test with 5 gallon buckets and the 2 held 62 gallons, that should help. I still need to add a vent hose. The guy at a local RV repair shop suggested I just run a little hose up into the wheel well, as long as it is higher then the tank. Right now it just has a vent hole drilled at the top edge.
My costs were:
$104 Tank $45 + 59 shipping
$33 Angle Iron
$18 plumbing parts
$155 Total
Below is the after image from the rear looking towards the old tank. The axle was slightly in the way for a straight run of the pipe to connect to the existing pipe, so I played it safe and put in a flexible hose section at that point so there would not be any extra stress on the hard plastic pipe at the point.
The Original tank claimed to be 36 gal but only held about 27, and I added 36 more. Tonight I did a test with 5 gallon buckets and the 2 held 62 gallons, that should help. I still need to add a vent hose. The guy at a local RV repair shop suggested I just run a little hose up into the wheel well, as long as it is higher then the tank. Right now it just has a vent hole drilled at the top edge.
My costs were:
$104 Tank $45 + 59 shipping
$33 Angle Iron
$18 plumbing parts
$155 Total
