Hairline crack around shower drain

[fango7]

Hi all, have two hairline cracks around shower tray drain, they seem superficial and not deep, as well as not noticable to the naked eye . I think the shower tray was put straight onto chip board floor, with no sand and cement etc, but not certain , shower is only a year old . Seems to be no movement in tray.

Are these hairline cracks anything to worry about , I am concerned they may let water through or are they potentially not deep enough and just cosmetic?

attached is the pictures of cracks

any help would be great

 

[breplum]

Nobody is going to be able to tell why you have cracking.
It is nothing I've ever seen in in 50 years.
Ask the mfr.

 

[Twowaxhack]

Hi all, have two hairline cracks around shower tray drain, they seem superficial and not deep, as well as not noticable to the naked eye . I think the shower tray was put straight onto chip board floor, with no sand and cement etc, but not certain , shower is only a year old . Seems to be no movement in tray.

Are these hairline cracks anything to worry about , I am concerned they may let water through or are they potentially not deep enough and just cosmetic?

attached is the pictures of cracks

any help would be great

Replace it.