Review on Nathan 1.8L Replacement Bladder for Hydration Vests & Packs - Leak Proof, BPA Free! by Vedprakash Trilltight

Bottle is good in all respects except there are two round plastic connectors on the 1 liter line which I don't understand how I can clean them inside. and they filled with mold. These connectors are designed to hold the plastic in place so water doesn't squirt out. For some reason they are hollow and hold water but are too small to insert a brush or tool to clean them. Disgusting and now I can't use it.