Which part of the floor is the place ?

this type of floor trap is quite easy to seal. I only put on plasticine (those used by kids) without any tapes, and the water pond stays over the weekend.

so if yours is gone in 24 hours, meaning something is wrong. maybe you can reapply the plasticine again, making sure you press it deep enough, and do the ponding test again

also better to get some new one ya, since it's cheap and easy to get - mr diy or stationary shops

haha ok ok

but i think i used more than 1 plasticine for each drain, so you might need to press more into it