1st... Did you just put the flooring over the drain?
If so - what will happen if your drains back up and the sewage gets trapped under the laminate floor?
i have a one way flap valve over that drain we installed another drain about 3 ft away to allow for the furnace/humidifier and hot water to be drained not covered
2nd... Does the drain have a trap primer?
Is there any plumbing set to drain into the drain body under the slab (condensates etc (not supposed to do this, but I have seen it...LOL
we have small amount of water running in the line at all times
3rd... If you have a continuous source of humidity under a sealed floor (covered drain) you may very well end up with a rot/mould problem...
we installed a 2nd drain in the floor not covered 3 ft away i used a mirror in the line but could not see anything i just hope some of the water is not leaking out through a possible hole i would have to lift about 4 rows by 10ft long. Any suggestions on what to do? thank you