I have a fiberglass shower in my basement. Recently I had some problems with the drain and had to rip out the old drain. I was trying to avoid putting in a new shower and/or floor, so I concocted a drain that is normally used for toilets and had to install over the old drain.

it is water tight, however, the only problem is that the drain itself is above 1/4" above the floor. Is there anything I could do to raise the floors level to the drain. Floor level, concrete, plastic? I really do not want to have to rip out the old shower.

Please help!

Can the floor be raised to make up for this space, yes but at some point in time if you did not take the time to do this right it's going to leak, causing far more damage, work and money to go back again and redo it.

Despite Mr. Caption being so helpful, I have additional suggestions. You MIGHT be able to install ceramic tile, using a thinset method, on the shower floor, and make up just about that quarter-inch. However, if the shower floor flexes AT ALL right now, any tile you might install on it will simply crack or constantly come loose. If your shower was properly installed with a mortar bed beneath the floor, the floor may be rigid enough to accept tile.

We have va couple of real tile experts on this forum...Tile Guy Bob, and I think, Bill Vincent. I hope one of them will comment about my thoughts. They are true hands-on professionals...I just draw the pictures.