You could drop a liner in the tank. The corners are a pain to fold in a tank like that but that is what I did. I now just use them for poop storage. I have one of the bins with a slot cut in the lid that fits my weed wacker so I can fill it a 1/4 the way with paper scraps and nail them with the weed wacker to make them bite size for the worms.

I did switch over to a kiddy pool that I garbage picked then used it for my sump/raft tank. There are so many right now on craigslist for free its ridiculous. people are giving away the cheap ass intek ones with the steel frame and the inflatable but I would not trust them in a finished basement over a solid plastic one. I got a plastic one but still made a berm of cinder blocks lined with cheap plastic around the area making sure if it blew out most of the water would go down the drain and only a little would leak under the berm.



Cheapest replacement options will be on craigslist. I see a 1000 gallon tank on there right now for 200 that only held water before.