WaterproofingThe type of waterproofing can help determine which linear drain series (S, FX, FF, FT) to specify. If using a traditional type of waterproofing, the professional will typically build a shower pan (wet waterproofed area) with PVC, Vinyl, Lead, Hot Mop, Copper or Fiberglass material. Infinity Drain’s S, FX, and TD Series are recommended. If using a modern type of waterproofing such as liquid or a fabric install, the professional can more easily waterproof over a greater floor area to build a barrier free or zero threshold installation. Infinity Drain’s FF, FT, and TDB Series are recommended for this type of waterproofing.