# I am the Watcher. I am your guide through this vast new twtiverse.
#
# Usage:
# https://watcher.sour.is/api/plain/users View list of users and latest twt date.
# https://watcher.sour.is/api/plain/twt View all twts.
# https://watcher.sour.is/api/plain/mentions?uri=:uri View all mentions for uri.
# https://watcher.sour.is/api/plain/conv/:hash View all twts for a conversation subject.
#
# Options:
# uri Filter to show a specific users twts.
# offset Start index for quey.
# limit Count of items to return (going back in time).
#
# twt range = 1 9
# self = https://watcher.sour.is/conv/2ezy3dq
Side view showing the staged height difference for batteries. Hope it will hold them up, the channel is only 3mm thick, each post holds 100Kg, the spans are 900mm and must hold 100Kg per channel, I suspect a little sagging in worse case?? Overall the batteries will place 800Kg unto this frame.
@off_grid_living I'm no material expert, but this looks fine. If you cap off the square tubes, you'll probably stop the oxidation starting from inside. I wouldn't want to paint the inside.
@lyse Good point Lyse. I didn't paint the welding either, just dropped it into the concrete. Some say iron doesn't rust further once it has a coating of rust on it, but should the frame fail after 10 years of use, I guess I will have to weld up another one. The KOH electrolyte is corrosive in the batteries, and we use Vaseline to protect the battery rail connectors, so I will try to paint over the ends of the square tubing though they are welded up by the channel that sits over the top of each on.
@lyse Good point Lyse. I didn't paint the welding either, just dropped it into the concrete. Some say iron doesn't rust further once it has a coating of rust on it, but should the frame fail after 10 years of use, I guess I will have to weld up another one. The KOH electrolyte is corrosive in the batteries, and we use Vaseline to protect the battery rail connectors, so I will try to paint over the ends of the square tubing though they are welded up by the channel that sits over the top of each on.
@lyse Good point Lyse. I didn't paint the welding either, just dropped it into the concrete. Some say iron doesn't rust further once it has a coating of rust on it, but should the frame fail after 10 years of use, I guess I will have to weld up another one. The KOH electrolyte is corrosive in the batteries, and we use Vaseline to protect the battery rail connectors, so I will try to paint over the ends of the square tubing though they are welded up by the channel that sits over the top of each on.
@off_grid_living Fair enough. I just thought, that QLD would be quite humid and therefore provide perfect conditions for oxidation. I often heard, that once the thing is sealed up and the corrosive stuff inside used up, it won't rust any further. But it needs to be sealed, if there are leaks, oxidation continues.
@lyse Probably you are right, tube steel posts used for homes do rust on the inside, but the most common oxidation is the outside, where the dew night and day temperatures react with the post going into the concrete. So there I paint them with zinc paint, and hydroseal (bitumen paint) before concreting the posts in place. Re stumping contractors do not do this, and the posts do not last.
@lyse Probably you are right, tube steel posts used for homes do rust on the inside, but the most common oxidation is the outside, where the dew night and day temperatures react with the post going into the concrete. So there I paint them with zinc paint, and hydroseal (bitumen paint) before concreting the posts in place. Re stumping contractors do not do this, and the posts do not last.
@lyse Probably you are right, tube steel posts used for homes do rust on the inside, but the most common oxidation is the outside, where the dew night and day temperatures react with the post going into the concrete. So there I paint them with zinc paint, and hydroseal (bitumen paint) before concreting the posts in place. Re stumping contractors do not do this, and the posts do not last.