So I bought a vented battery box, came today, and it looks exactly like the picture shown earlier and seen below. What you don't see here is underneath where there's a 2 inch diameter hole extending out 1 inch deep from the bottom tray. A second vent for a second hose? What's that all about??
I have a 1982 Fiber Stream
with a steel interior battery box. It is unsupported as descrribed by Frederick Simpson in another thread, plus taking the battery in and out is a real pain!
I was lucky to purchase a used vented battery box of this description plus hose yesterday. The [b]real problem solver was that a standard 1.5" crumb cup (PlumbShop PS2256) is a friction fit into the 2' vent nozzles on the tank. This is also a standard drain stop for many RV sinks. I plan to install two, with metal window mesh to prevent insects getting in.
I plan to install the box as follows.
1. Site the box location on the trailer floor.
2. Nail in 1"x2" support strips on the floor to frame the battery box and keep it positioned.
3. Mark the floor drain hole.
4. Drill the floor hole to allow the hose to pass.
5. Plush the first crumb cup in the bottom section vent with the window mesh, from inside the box (then it won't fall
6. Glue a short section (2" to 3") of hose to this vent. This will ensure anything leaking from the box (like battery acid) will exit below the trailer floor.
7. Place bottom section in between the 1"x2" framing supports.
8. Insert the battery, and connect cables, using wiring grommets to seal the box at the cable entry points.
9. Run a small width, thin foam weatherstrip arond the bottom sealing surface.
10. Place the top half of the box onto the bottom half.
11. Screw fiber straps with buckles to the 1'x2" side supports, and strap in the battery box
12. Push the second crumb cup in the top section vent with the window mesh, from outside the box (then it won't fall
into the box).
13. Install a manual water filler unit upside down (so that rain water coming in won't run to the battery box) on the side of the trailer, plugging the 3/8" vent line.
14. Grind angled vent slots in the manual water filler cap with a Dremel tool, and permanently glue in place.
15. Connect one end of the vent hose to the battery box top vent.
16. Connect the other end of the vent hose to the modified manual water unit.
I'll provide phtos as this comes together.