Brass Basin is buggy and doesn't have all functionality that a normal basin does :(

Edit: Pull request made, now I just have to wait for them to accept it.

Ported the PR to 1.19.2 myself instead of waiting so I could build that version and use it to test in dev - This has now been fixed in dev, but won't work if you use the current release of Create. If you want this bug to be fixed, you'll have to build my fork of Create with the changes.

Similar functionality has been added to base create in 0.5.1g, but a mod update is required for the mod to work with 0.5.1g. Update releases soon.