Does the bath tub water disappear randomly?

Question

I have a bath tub from the store I bought and I noticed the water disappears sometimes so I have to keep filling it. It seems like no one even uses it and the water just goes somewhere. Is this supposed to happen and if so what causes it or is it just random?

Answer 1

When the bathtub is used it  disappear after 10 minutes (checked 3times, always 10minutes). When it is filled and no one uses it, water never disappear. (I have full fill bath since year)

Comments

After 10minutes with you inside the tube?

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Yeah were you in the water or out?

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yes, inside - when I used bath ;p never disappear when bath is 'free'  lol ^^

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Oh so when its not used it won't disappear it's only if it's been used (not fresh) it evaporates eventually?

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yes ;p edited my answer