The preparation steps of building your shower can be strenuous, but it is one of the most important items and giving your attention to this will be well worthwhile.One of the most important preparation steps is to pre-slope a shower. Forgoing this step could mean the difference between having water damage and mildew in your shower. There is a possibility that water can go through your mortar bed underneath your tiled shower floor. The real question is, where does that water go once it has gone …