Grohe 46 298 Spray Head Our spray head suddenly became very weak (flow). I've taken it off but am not sure how to disassemble without breaking. Any tips on disassembly or cleaning would be appreciated. The whole thing seems to be made of plastic. They want $112 plus S&H for a new one, which seems a little ridiculous for a plastic shower head. So repair is definitely preferable. Thanks! p.s. picture can be found here http://www.chicagofaucetshoppe.com/ProductDetails.asp?ProductCode=GRO-46+298