Does anybody know of a bar soap for the shower that will not build up a soap-scum on the collection box filter from our shower. A friend of mine suggested Zest bar soap because the Navy recommends issues it. ?? One of our friend only uses liquid soap in the boat shower.... Any other suggestions of thoughts? David David & Marla Russo MV Adesso, a Pama LX540, currently at lambs in Jacksonville, FL Phone (847) 778-1018 Skype Adesso54 Adesso@ymail.com drusso@arccommercial.com