So after the scare of my BP escaping(safely found later that day) we've been using weights on his tub lid since to prevent him from pushing it open. It has latches on the sides, but they've grown weak and he can easily push them off.

So what are some ideas to better secure his tub? We're using small lifting weights on the corners but it's a pain to remove and replace them every time I pop in to check temps, give water, etc. Anyone have better ideas for how to secure the lid of a tub?