Mark Donovan of http://www.HomeAdditionPlus.com shows how to install a mortar shower pan for a custom ceramic tile shower. For more information on installing a mortar shower pan see my "Shower Pan Membrane Liner Installation" Ebook. You can find it at: http://www.homeadditionplus.com/Showe.... Proper mortar shower pan installation is critical for ensuring a leak free mortar shower pan. This HomeAdditionPlus video will show you how to build a shower pan than that will never leak.