Another thing that is a continuous chore is keeping after the solar batteries.
Besides having to monitor them ... we check them every month. Loretta checks the specific gravity and adds distilled water when they are low. That may not seem like a big deal, but there are 16 of those giant Surette batteries and each has 6 fill caps on them. So that's 96 places to check and/or fill each month.
Each cell has those Hydrogen recapture caps on them.
You have to be sure to "click" them completely shut every time. Sometime they click on the front, but the back is still up. So you have to double check they are completely closed. She keeps a log on how much each battery takes. It's interesting to see that during the Summer it takes way more water. Not only that, but some cells in the same battery take more than others.
This month (yesterday) she cleaned all the corrosion (after 3 years) off each battery terminal and cable. Then she turned all cables downwards (first photo below). They were looped up (2nd photo below). So it would be easier to get to the cells in the back. Man, we've been avoiding those upwards loops for 3 dang years! We constantly knocked our hands or elbows when checking/filling in the past. Of course we spilled a lot.
Now there's plenty of room and no obstacles.
She cleaned the corrosion off with baking soda first.
The she got the Makita with a small wire brush and cleaned (super good) both the battery terminals and all the cable ends. She borrowed my socket set and tightened them metal to metal for a really good connection. Then she sprayed them with a Sealer she got from Napa.
They are really sano now!