I don't mean just water build up, its water in combination with certain products that causes the build up. Which would be why its happening since you changed products. See what I mean?
Grand Goobah Caedran, Aqueous Infusion of Demulcents, Order of the Curly Crusaders

Fia 2cFi, fine texture, med porosity CG 5-29-09 * My hair loves protein! Currently using : DermOrganics Shampoo and IHM, G2B Kinkier Mousse, Re:Coil VMM, Anything Spiral Solutions! MO Sealing. Coconut Oil Pre-Poo, once a month Hard Water shampoo. Avoiding Glycerin in finishing products.